DTX Series
CableAnalyzer
TM
Technical Reference Handbook
April 2004, Rev. 3 3/06
© 2004, 2006 Fluke Corporation. All rights reserved.
All product names are trademarks of their respective companies.
LIMITED WARRANTY AND LIMITATION OF LIABILITY
Each Fluke Networks product is warranted to be free from defects in material and workmanship under normal use and service. The warranty
period for the mainframe is one year and begins on the date of purchase. Parts, accessories, product repairs and services are warranted for
90 days, unless otherwise stated. Ni-Cad, Ni-MH and Li-Ion batteries, cables or other peripherals are all considered parts or accessories. The
warranty extends only to the original buyer or end user customer of a Fluke Networks authorized reseller, and does not apply to any product which, in Fluke Networks’ opinion, has been misused, abused, altered, neglected, contaminated, or damaged by accident or abnormal
conditions of operation or handling. Fluke Networks warrants that software will operate substantially in accordance with its functional
specifications for 90 days and that it has been properly recorded on non-defective media. Fluke Networks does not warrant that software
will be error free or operate without interruption.
Fluke Networks authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke Networks. Warranty support is available only if product is purchased
through a Fluke Networks authorized sales outlet or Buyer has paid the applicable international price. Fluke Networks reserves the right to
invoice Buyer for importation costs of repair/replacement parts when product purchased in one country is submitted for repair in another
country.
Fluke Networks' warranty obligation is limited, at Fluke Networks' option, to refund of the purchase price, free of charge repair, or replacement of a defective product which is returned to a Fluke Networks authorized service center within the warranty period.
To obtain warranty service, contact your nearest Fluke Networks authorized service center to obtain return authorization information, then
send the product to that service center, with a description of the difficulty, postage and insurance prepaid (FOB Destination). Fluke Networks assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB
Destination). If Fluke Networks determines that failure was caused by neglect, misuse, contamination, alteration, accident or abnormal
condition of operation or handling, or normal wear and tear of mechanical components, Fluke Networks will provide an estimate of repair
costs and obtain authorization before commencing the work. Following repair, the product will be returned to the Buyer transportation
prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping Point).
THIS WARRANTY IS BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. FLUKE NETWORKS SHALL
NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, ARISING
FROM ANY CAUSE OR THEORY.
Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. If any provision of this Warranty is held
invalid or unenforceable by a court or other decision-maker of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision.
4/04
Fluke Networks
PO Box 777
Everett, WA 98206-0777
USA
Table of Contents
Chapter
1
Title
Page
Getting Acquainted ...................................................................................................... 1-1
Overview of Features....................................................................................................
Registration ...................................................................................................................
Contacting Fluke Networks ..........................................................................................
Additional Resources for Cable Testing Information..................................................
Unpacking .....................................................................................................................
DTX-1800 ..................................................................................................................
DTX-1200 ..................................................................................................................
DTX-LT ......................................................................................................................
DTX-MFM2 Multimode Fiber Modules (optional) ..................................................
DTX-GFM2 Multimode Fiber Modules (optional) ...................................................
DTX-SFM2 Singlemode Fiber Modules (optional)...................................................
Safety Information........................................................................................................
Basic Features ................................................................................................................
Physical Features ......................................................................................................
Changing the Language ..........................................................................................
Powering the Tester.................................................................................................
i
1-1
1-2
1-2
1-3
1-3
1-3
1-4
1-4
1-5
1-5
1-5
1-6
1-8
1-8
1-14
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DTX Series CableAnalyzer
Technical Reference Handbook
About Link Interface Adapters and Modules .........................................................
Verifying Operation.................................................................................................
Checking the Hardware and Software Versions ....................................................
The Main Autotest Screen.......................................................................................
Setting User Preferences ..............................................................................................
Changing the Date, Time, and Date/Time Formats................................................
Changing the Length Units .....................................................................................
Changing the Numeric Format ...............................................................................
Adjusting the Display Contrast ...............................................................................
Setting the Power Down Timer ..............................................................................
Setting the Backlight Timer ....................................................................................
Enabling or Disabling the Beeper ...........................................................................
Overview of Memory Features ....................................................................................
Inserting and Removing the Memory Card ............................................................
Formatting the Memory Card (DTX-1800 and DTX-1200) or Internal Memory...
Creating Folders.......................................................................................................
Setting the Storage Location (DTX-1800 and DTX-1200) .....................................
Options for Entering Cable IDs ...............................................................................
Using the Talk Mode ....................................................................................................
About LinkWare and LinkWare Stats Software ..........................................................
2
1-18
1-21
1-22
1-22
1-24
1-24
1-24
1-24
1-25
1-25
1-25
1-26
1-26
1-26
1-26
1-27
1-28
1-28
1-30
1-30
Tutorials on Setup and Test Procedures ..................................................................... 2-1
Preparing to Save Tests ................................................................................................
Step 1: Checking the Memory Space Available ......................................................
Step 2: Entering Job Information............................................................................
Step 3: Setting the Storage Location (DTX-1800 and DTX-1200) ..........................
Step 4: Setting Up a Job Folder...............................................................................
Step 5: Selecting a Cable ID Source.........................................................................
ii
2-1
2-1
2-2
2-4
2-4
2-5
Contents (continued)
Certifying Twisted Pair Cabling....................................................................................
Required Equipment ................................................................................................
Step 1: Checking the Battery Status and Verifying Operation with Twisted
Pair Adapters ............................................................................................................
Step 2: Selecting a Test Limit, Cable Type, and Outlet Configuration ..................
Step 3: Running the Autotest ..................................................................................
Step 4: Viewing the Autotest Results......................................................................
Step 5: Saving the Results ........................................................................................
Certifying Fiber Cabling................................................................................................
Required Equipment ................................................................................................
Step 1: Installing the Fiber Modules........................................................................
Step 2: Checking the Battery Status and Verifying Operation with Fiber
Modules ....................................................................................................................
Step 3: Selecting a Fiber Type and Test Limit .........................................................
Step 4: Configuring the Fiber Test ..........................................................................
Step 5: Setting the Reference ..................................................................................
Step 6: Running the Test..........................................................................................
Step 7: Viewing the Results .....................................................................................
Step 8: Saving the Results ........................................................................................
Using the Auto Increment and Sequential Cable ID Features ....................................
Using the Auto Increment Feature..........................................................................
Creating a List of Sequential IDs .............................................................................
About ANSI/TIA/EIA-606-A Cable IDs.......................................................................
3
2-5
2-6
2-7
2-8
2-8
2-11
2-12
2-12
2-12
2-14
2-14
2-15
2-16
2-16
2-18
2-19
2-19
2-20
2-20
2-21
2-24
Certifying Twisted Pair Cabling ................................................................................... 3-1
Setting the Reference ................................................................................................... 3-1
Testing Twisted Pair Patch Cords ................................................................................. 3-2
Twisted Pair Test Settings............................................................................................. 3-3
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DTX Series CableAnalyzer
Technical Reference Handbook
Autotest on Twisted Pair Cabling ................................................................................
Twisted Pair Autotest Results ......................................................................................
Automatic Diagnostics.............................................................................................
PASS*/FAIL* Results .................................................................................................
Wire Map .................................................................................................................
Resistance.................................................................................................................
Characteristic Impedance ........................................................................................
Length ......................................................................................................................
Propagation Delay and Delay Skew........................................................................
Insertion Loss ...........................................................................................................
NEXT (Near-End Crosstalk) ......................................................................................
ACR (Attenuation to Crosstalk Ratio) .....................................................................
Return Loss...............................................................................................................
PSNEXT (Power Sum Near End Crosstalk) Test .......................................................
PSACR (Power Sum Attenuation to Crosstalk Ratio) Test......................................
ELFEXT (Equal Level Far-End Crosstalk) Test ..........................................................
PSELFEXT Test ..........................................................................................................
Running Single Tests ....................................................................................................
Monitoring Impulse Noise............................................................................................
Using the Tone Generator ...........................................................................................
4
3-6
3-9
3-11
3-12
3-13
3-15
3-15
3-16
3-17
3-18
3-20
3-22
3-24
3-26
3-26
3-26
3-29
3-29
3-31
3-34
Certifying Coaxial Cabling ........................................................................................... 4-1
Setting the Reference...................................................................................................
Coaxial Test Settings.....................................................................................................
Autotest on Coaxial Cabling ........................................................................................
Coaxial Autotest Results...............................................................................................
HDTDR Analyzer ......................................................................................................
Resistance.................................................................................................................
iv
4-1
4-3
4-5
4-9
4-10
4-10
Contents (continued)
Impedance ................................................................................................................
Length.......................................................................................................................
Propagation Delay ...................................................................................................
Insertion Loss ............................................................................................................
Running Single Tests.....................................................................................................
5
Diagnosing Copper Cabling Faults .............................................................................. 5-1
Using the Automatic Diagnostics .................................................................................
Avoiding Tester-Induced Failures.................................................................................
Common Causes of Copper Cabling Failures ...............................................................
The HDTDX Analyzer ....................................................................................................
Running the HDTDX Analyzer .................................................................................
Recognizing Faults on HDTDX Plots........................................................................
The HDTDR Analyzer ....................................................................................................
Running the HDTDR Analyzer .................................................................................
Recognizing Faults on HDTDR Plots ........................................................................
6
4-10
4-11
4-11
4-11
4-11
5-1
5-1
5-2
5-9
5-9
5-11
5-12
5-12
5-12
Certifying Fiber Optic Cabling...................................................................................... 6-1
Overview of Features....................................................................................................
Safety Information........................................................................................................
Installing and Removing Fiber Modules ......................................................................
Installing the Connector Adapter ................................................................................
Verifying Operation......................................................................................................
Essentials for Reliable Fiber Test Results......................................................................
Cleaning Connectors and Adapters.........................................................................
About Setting the Reference...................................................................................
Selecting Reference Test Cords................................................................................
Testing Your Reference Test Cords .........................................................................
v
6-1
6-2
6-4
6-6
6-8
6-8
6-8
6-10
6-11
6-11
DTX Series CableAnalyzer
Technical Reference Handbook
Using Mandrels for Testing Multimode Fiber ........................................................
Fiber Test Settings ........................................................................................................
About Method B Connections .....................................................................................
Autotest in Smart Remote Mode.................................................................................
Setting the Reference for Smart Remote Mode ....................................................
Running the Autotest in Smart Remote Mode ......................................................
Smart Remote Mode Autotest Results....................................................................
Autotest in Loopback Mode ........................................................................................
Setting the Reference in Loopback Mode..............................................................
Running the Autotest in Loopback Mode..............................................................
Loopback Mode Autotest Results ...........................................................................
Autotest in Far End Source Mode................................................................................
Setting the Reference in Far End Source Mode .....................................................
Running the Autotest in Far End Source Mode .....................................................
Far End Source Mode Autotest Results...................................................................
Bi-Directional Testing ...................................................................................................
Bi-Directional Results for Smart Remote Mode .....................................................
Bi-Directional Results for Loopback Mode .............................................................
Finding Connections with FindFiber............................................................................
Using FindFiber in Smart Remote Mode.................................................................
Using FindFiber in Loopback Mode ........................................................................
Using the Power Meter ................................................................................................
Running Single Tests ....................................................................................................
Using the Remote Tester with an OptiFiber Tester .................................................
7
6-12
6-14
6-18
6-19
6-20
6-22
6-24
6-26
6-28
6-30
6-32
6-34
6-36
6-38
6-40
6-42
6-42
6-42
6-44
6-44
6-48
6-50
6-54
6-54
Locating Fibers and Faults with the Visual Fault Locator .......................................... 7-1
Visual Fault Locator Applications ................................................................................ 7-1
Using the Visual Fault Locator ..................................................................................... 7-2
vi
Contents (continued)
8
Diagnosing Fiber Cabling Faults .................................................................................. 8-1
Common Causes of Failures.......................................................................................... 8-1
Diagnosing Failures....................................................................................................... 8-2
9
Verifying Network Service ........................................................................................... 9-1
Overview of Features....................................................................................................
Software Requirements ................................................................................................
Installing and Removing the Network Module and Optional SFP Module ...............
Verifying Network Connectivity...................................................................................
Network Connectivity Test Settings ........................................................................
Entering Ping Addresses ..........................................................................................
Running the Connectivity Test ................................................................................
Saving Connectivity Results .....................................................................................
Pinging Network Devices..............................................................................................
Monitoring Network Traffic .........................................................................................
Blinking a Port Light .....................................................................................................
Identifying Links (twisted pair only) ............................................................................
Diagnosing Low-Level Network Problems ...................................................................
10
9-1
9-1
9-2
9-4
9-4
9-5
9-6
9-6
9-11
9-12
9-14
9-14
9-16
Custom Test Settings.................................................................................................... 10-1
Creating a Custom Twisted Pair Cable Type................................................................
Creating a Custom Fiber Type ......................................................................................
Creating a Custom Twisted Pair Test Limit ..................................................................
Creating a Custom Fiber Limit......................................................................................
Creating a Custom Outlet Configuration ....................................................................
Editing Custom Settings ...............................................................................................
Deleting Custom Settings .............................................................................................
vii
10-1
10-3
10-4
10-5
10-6
10-7
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DTX Series CableAnalyzer
Technical Reference Handbook
Changing the NVP ........................................................................................................
Setting the NVP to a Specified Value .....................................................................
Determining a Cable's Actual NVP..........................................................................
Resetting the NVP to the Default Value.................................................................
Transferring Custom Settings Between Testers ..........................................................
11
Memory Functions ....................................................................................................... 11-1
Storage Locations and Capacities ................................................................................
Checking the Memory Status.......................................................................................
Setting the Storage Location (DTX-1800, DTX-1200)..................................................
Working with Folders...................................................................................................
Creating a New Folder.............................................................................................
Changing Folders .....................................................................................................
Deleting Folders.......................................................................................................
Viewing and Managing Saved Results ........................................................................
Moving or Copying Results to a Memory Card (DTX-1800, DTX-1200).................
Deleting Results .......................................................................................................
Sorting Results .........................................................................................................
Formatting a Memory Card (DTX-1800, DTX-1200) or Internal Memory ..................
Memory Card Care (DTX-1800, DTX-1200) ..................................................................
Uploading Results to a PC ............................................................................................
12
10-8
10-8
10-9
10-10
10-10
11-1
11-2
11-3
11-3
11-3
11-4
11-4
11-5
11-6
11-6
11-7
11-7
11-8
11-9
Maintenance and Specifications ................................................................................. 12-1
Maintenance.................................................................................................................
Reference Procedure for Link Interface Adapters..................................................
Factory Calibration ..................................................................................................
Updating the Tester’s Software ..............................................................................
Cleaning ...................................................................................................................
viii
12-1
12-1
12-2
12-2
12-6
Contents (continued)
Retraining the Battery Gauge .................................................................................
Replacing the Battery ..............................................................................................
Fiber Module Maintenance .....................................................................................
Storage ..........................................................................................................................
If Something Seems Wrong ..........................................................................................
Options and Accessories ...............................................................................................
Specifications.................................................................................................................
Environmental and Regulatory Specifications........................................................
Service Calibration Period........................................................................................
Standard Link Interface Adapters ...........................................................................
Cable Types Tested...................................................................................................
Time for Autotest.....................................................................................................
Summary of Performance Specifications ................................................................
Length.......................................................................................................................
Propagation Delay ...................................................................................................
Delay Skew ...............................................................................................................
DC Loop Resistance Test ..........................................................................................
Measurement Accuracy............................................................................................
HDTDX Analyzer Specifications for Cables <100 m (328 ft) ................................
HDTDR Analyzer Specifications for Cables <100 m (328 ft).................................
Characteristic Impedance.........................................................................................
Impulse Noise ...........................................................................................................
DTX-COAX Coaxial Adapter Specifications .............................................................
DTX-NSM Module Specifications .............................................................................
DTX-MFM2/SFM2/GFM2 Fiber Module Specifications ............................................
Visual Fault Locator..................................................................................................
Tone Generator ........................................................................................................
Power........................................................................................................................
ix
12-6
12-7
12-7
12-8
12-8
12-11
12-15
12-15
12-16
12-16
12-16
12-17
12-17
12-17
12-18
12-18
12-18
12-22
12-27
12-27
12-27
12-27
12-28
12-30
12-31
12-35
12-35
12-36
DTX Series CableAnalyzer
Technical Reference Handbook
Power .......................................................................................................................
Electromagnetic Compatibility ...............................................................................
Input Ratings............................................................................................................
Certification and Compliance .................................................................................
CSA Standards ..........................................................................................................
Safety........................................................................................................................
Laser Classification and Safety for DTX-MFM2, DTX-GFM2, and DTX-SFM2
Fiber Modules ..........................................................................................................
Memory for Test Results..........................................................................................
Serial Interfaces .......................................................................................................
Dimensions (without adapter or module)..............................................................
Weight (without adapter or module).....................................................................
Display ......................................................................................................................
12-36
12-36
12-36
12-36
12-37
12-37
12-37
12-37
12-38
12-38
12-38
12-38
Appendices
A
B
Fiber Test Method Reference Tables .................................................................... A-1
Loss Test Methods for Fiber Cabling .................................................................... B-1
Index
x
List of Tables
Table
1-1.
3-1.
3-2.
4-1.
4-2.
5-1.
6-1.
6-2.
8-1.
8-2.
9-1.
9-2.
12-1.
12-2.
12-3.
12-4.
A-1.
A-2.
Title
International Electrical Symbols ..........................................................................................
Twisted Pair Test Settings ....................................................................................................
Smart Remote Requirements for Twisted Pair Single Tests ...............................................
Coaxial Cable Test Settings..................................................................................................
Smart Remote Requirements for Coaxial Single Tests .......................................................
Diagnosing Twisted Pair Test Failures.................................................................................
TIA/EIA-568-B.1 and ISO/IEC TR 14763-3 Mandrel Requirements ......................................
Fiber Test Settings ................................................................................................................
Causes of Failures in Fiber Links ..........................................................................................
Diagnosing Fiber Test Failures.............................................................................................
Network Connectivity Test Settings ....................................................................................
Diagnosing Low-Level Network Problems ..........................................................................
Troubleshooting the Tester .................................................................................................
Options and Accessories ......................................................................................................
Level IV Accuracy Performance Parameters per IEC Guidelines.........................................
DTX RS-232 Cable Pin Connections .....................................................................................
Test Method Names .............................................................................................................
Test Methods Required by Standards .................................................................................
xi
Page
1-6
3-3
3-30
4-3
4-12
5-2
6-12
6-14
8-1
8-2
9-4
9-16
12-9
12-11
12-19
12-38
A-1
A-2
DTX Series CableAnalyzer
Technical Reference Handbook
xii
List of Figures
Figure
1-1.
1-2.
1-3.
1-4.
1-5.
1-6.
1-7.
1-8.
1-9.
1-10.
1-11.
2-1.
2-2.
2-3.
2-4.
2-5.
2-6.
Title
Page
Tester Front Panel Features .................................................................................................
Tester Side and Top Panel Features ....................................................................................
Smart Remote Features........................................................................................................
Charging and Removing the Battery ..................................................................................
Checking the Battery Status ................................................................................................
Attaching and Removing Adapters.....................................................................................
Handling Guidelines for Permanent Link Adapters ...........................................................
Changing the Personality Module.......................................................................................
Self Test Connections ...........................................................................................................
The Main Autotest Screen (for Twisted Pair Media) ..........................................................
Inserting and Removing the Memory Card ........................................................................
Using the Text Editing Screen .............................................................................................
Equipment for Certifying Twisted Pair Cabling..................................................................
Battery Status and Self Test Connections for Twisted Pair Adapters ................................
Permanent Link Test Connections .......................................................................................
Channel Test Connections ...................................................................................................
Autotest Summary and Diagnostic Screens ........................................................................
1-8
1-10
1-12
1-15
1-17
1-18
1-19
1-20
1-21
1-23
1-27
2-3
2-6
2-7
2-9
2-10
2-11
xiii
DTX Series CableAnalyzer
Technical Reference Handbook
2-7.
2-8.
2-9.
2-10.
2-11.
2-12.
3-1.
3-2.
3-3.
3-4.
3-5.
3-6.
3-7.
3-8.
3-9.
3-10.
3-11.
3-12.
3-13.
3-14.
3-15.
3-16.
3-17.
3-18.
3-19.
3-20.
3-21.
3-22.
Equipment for Testing in Smart Remote Mode (Method B) .............................................
Installing Fiber Modules ......................................................................................................
Self Test Connections for Fiber Modules ............................................................................
Smart Remote Mode Reference Connections (Method B).................................................
Smart Remote Mode Test Connections (Method B) ..........................................................
Summary Results Screen for an Autotest on Fiber.............................................................
Twisted Pair Reference Connections ..................................................................................
Equipment for Certifying Twisted Pair Cabling .................................................................
Permanent Link Test Connections ......................................................................................
Channel Test Connections ...................................................................................................
Autotest Summary Screen for Twisted Pair Cabling ..........................................................
Examples of Automatic Diagnostic Screens........................................................................
PASS* and FAIL* Results......................................................................................................
Wire Map Examples.............................................................................................................
Resistance Results ................................................................................................................
Length Results......................................................................................................................
Propagation Delay and Delay Skew Results .......................................................................
Insertion Loss is a Decrease in Signal Strength ..................................................................
Insertion Loss Plot................................................................................................................
Near-End Crosstalk (NEXT) ..................................................................................................
NEXT Plot .............................................................................................................................
Attenuation to Crosstalk Ratio (ACR).................................................................................
ACR Plot ...............................................................................................................................
Sources of Return Loss.........................................................................................................
Return Loss Plot ...................................................................................................................
Far-End Crosstalk (FEXT)......................................................................................................
ELFEXT Plot ..........................................................................................................................
Causes and Effects of Noise.................................................................................................
xiv
2-13
2-14
2-15
2-17
2-18
2-19
3-2
3-6
3-7
3-8
3-10
3-11
3-12
3-13
3-15
3-16
3-17
3-18
3-19
3-20
3-21
3-22
3-23
3-24
3-25
3-27
3-28
3-31
Contents (continued)
3-23.
3-24.
4-1.
4-2.
4-3.
4-4.
4-5.
5-1.
5-2.
5-3.
5-4.
6-1.
6-2.
6-3.
6-4.
6-5.
6-6.
6-7.
6-8.
6-9.
6-10.
6-11.
6-12.
6-13.
6-14.
6-15.
6-16.
6-17.
Impulse Noise Test Results ...................................................................................................
Using the Tone Generator ...................................................................................................
Coaxial Reference Connections ...........................................................................................
Equipment for Certifying Coaxial Cabling..........................................................................
Coaxial Network Cabling Test Connections........................................................................
Coaxial Video Cabling Test Connections.............................................................................
Autotest Results for Coaxial Cabling...................................................................................
HDTDX Plot (permanent link adapters used) .....................................................................
Interpreting HDTDX Plots ....................................................................................................
HDTDR Plot (permanent link adapters used)......................................................................
Interpreting HDTDR Plots ....................................................................................................
Installing and Removing Fiber Modules .............................................................................
Fiber Module Features .........................................................................................................
SC, ST, LC, and FC Connector Adapters ...............................................................................
Installing the Connector Adapter .......................................................................................
Self Test Connections for Fiber Modules ............................................................................
Wrapping a Reference Test Cord Around a Mandrel.........................................................
Example of Hawe to Determine the Number of Adapters ................................................
Equipment for Testing in Smart Remote Mode (Method B)..............................................
Smart Remote Mode Reference Connections (Method B) .................................................
Smart Remote Mode Test Connections (Method B) ...........................................................
Smart Remote Mode Summary and Loss Result Screens (unsaved, single-directional) ....
Equipment for Testing in Loopback Mode (Method B) .....................................................
Loopback Mode Reference Connections (Method B).........................................................
Loopback Mode Test Connections (Method B) ..................................................................
Loopback Mode Summary and Loss Results Screens (single-directional) ..........................
Equipment for Testing in Far End Source Mode (Method B).............................................
Far End Source Mode Reference Connections (Method B) ................................................
xv
3-33
3-35
4-2
4-5
4-7
4-8
4-9
5-10
5-11
5-13
5-14
6-4
6-5
6-6
6-7
6-8
6-13
6-16
6-19
6-21
6-23
6-24
6-27
6-29
6-31
6-32
6-35
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DTX Series CableAnalyzer
Technical Reference Handbook
6-18.
6-19.
6-20.
6-21.
6-22.
6-23.
6-24.
6-25.
6-26.
6-27.
6-28.
7-1.
7-2.
9-1.
9-2.
9-3.
9-4.
9-5.
9-6.
9-7.
9-8.
11-1.
11-2.
12-1.
12-2.
12-3.
12-4.
12-5.
Far End Source Mode Test Connections (Method B) .........................................................
Far End Source Mode Summary and Results Screens .........................................................
Unsaved and Saved Bi-Directional Results for Smart Remote Mode ................................
Equipment for Using FindFiber in Smart Remote Mode ...................................................
Main Tester Results for FindFiber Test (Smart Remote Mode)..........................................
Using FindFiber in Smart Remote Mode ............................................................................
Equipment for Using FindFiber in Loopback Mode...........................................................
Using FindFiber in Loopback Mode ....................................................................................
Equipment for Using the Power Meter in MONITOR Mode..............................................
Connections for Monitoring Optical Power (MONITOR mode) ........................................
Power Meter Screens ...........................................................................................................
Equipment for Using the Visual Fault Locator ...................................................................
Using the Visual Fault Locator ............................................................................................
Network Module Features ..................................................................................................
Installing and Removing the Network and SFP Modules ..................................................
Network Test Connections ..................................................................................................
Network Connectivity Results Screen (DHCP example) .....................................................
Negotiation Details for Twisted Pair (twisted pair results shown) ...................................
Ping Results Screen ..............................................................................................................
Traffic Monitor Screen.........................................................................................................
Identifying Links with Optional LinkRunner Cable ID Locators ........................................
Memory Status Screen Features..........................................................................................
View Results Screen .............................................................................................................
Updating the Software with a PC.......................................................................................
Updating the Software with an Updated Tester ...............................................................
Baseline Insertion Loss Measurement Accuracy .................................................................
Baseline NEXT Loss Measurement Accuracy.......................................................................
Baseline Return Loss Measurement Accuracy ....................................................................
xvi
6-39
6-40
6-43
6-45
6-46
6-47
6-48
6-49
6-50
6-51
6-53
7-2
7-3
9-2
9-3
9-7
9-8
9-10
9-12
9-13
9-15
11-2
11-5
12-3
12-4
12-23
12-24
12-25
Contents (continued)
12-6.
B-1.
B-2.
B-3.
B-4.
B-5.
B-6.
B-7.
Baseline ELFEXT Measurement Accuracy ............................................................................
Method A/A.2 Reference and Test Connections (singlemode shown) ..............................
Method B/A.1 Reference and Test Connections (singlemode shown)...............................
Method C/A.3 Reference and Test Connections (singlemode shown)...............................
Modified Method B: Smart Remote Mode Reference Connections ..................................
Modified Method B: Smart Remote Mode Test Connections ............................................
Alternate Method Reference and Test Connections (singlemode shown) .......................
Alternate Method Test Connections for a Link with MT-RJ Connectors
(singlemode shown).............................................................................................................
xvii
12-26
B-3
B-5
B-7
B-9
B-10
B-12
B-13
DTX Series CableAnalyzer
Technical Reference Handbook
xviii
Chapter 1
Getting Acquainted
Overview of Features
The DTX Series CableAnalyzers are rugged, hand-held
instruments used to certify, troubleshoot, and document
copper and fiber cabling installations. The testers feature
the following:
•
•
•
The DTX-1800 and DTX-1200 certify twisted pair and
coaxial cabling to Class F limits (600 MHz) in less than
25 seconds and Category 6 cabling in less than 10
seconds. Meets Level III and proposed Level IV
accuracy requirements.
The DTX-LT certifies Category 6 cabling in less than
28 seconds. Both meet Level III and proposed Level IV
accuracy requirements.
Color display clearly indicates PASS/FAIL results.
•
Automatic diagnostics report distance to and likely
causes of common faults.
•
Toner feature helps you locate jacks and
automatically starts an Autotest upon tone
detection.
•
Optional fiber modules let you certify multimode
and singlemode fiber optic cabling.
•
Optional DTX-NSM module lets you verify network
service.
•
Stores up to 250 Cat 6 Autotest results, including
graphical data, in internal memory.
•
The DTX-1800 and DTX-1200 store up to 500 Cat 6
Autotest results, including graphical data, on a 16
MB removable memory card.
1-1
DTX Series CableAnalyzer
Technical Reference Handbook
•
Runs for at least 12 hours on the rechargeable lithium
ion battery pack.
•
Smart remote with optional fiber module can be used
with Fluke Networks OF-500 OptiFiber Certifying
OTDR for loss/length certification.
•
LinkWare software lets you upload test results to a
PC to create professional-quality test reports. The
LinkWare Stats option generates browsable,
graphical reports of cable test statistics.
Registration
Registering your product with Fluke Networks gives you
access to valuable information on product updates,
troubleshooting tips, and other support services.
To register, fill out the online registration form on the
Fluke Networks website at
www.flukenetworks.com/registration.
Contacting Fluke Networks
Note
If you contact Fluke Networks about your tester,
have the tester's software and hardware version
numbers available if possible.
www.flukenetworks.com
support@flukenetworks.com
+1-425-446-4519
•
•
•
•
•
•
•
•
•
•
•
Australia: 61 (2) 8850-3333 or 61 (3) 9329 0244
Beijing: 86 (10) 6512-3435
Brazil: 11 3044 1277
Canada: 1-800-363-5853
Europe: +44-(0)1923-281-300
Hong Kong: 852 2721-3228
Japan: 03-3434-0510
Korea: 82 2 539-6311
Singapore: 65-6799-5566
Taiwan: (886) 2-227-83199
USA: 1-800-283-5853
Visit our website for a complete list of phone numbers.
1-2
Getting Acquainted
Additional Resources for Cable Testing Information
Additional Resources for Cable
Testing Information
DTX-1800
•
DTX-1800 CableAnalyzer with lithium-ion battery
pack
The Fluke Networks Knowledge Base answers common
questions about Fluke Networks products and provides
articles on cable testing techniques and technology.
•
DTX-1800 Smart Remote with lithium-ion battery
pack
•
Two Cat 6/Class E permanent link adapters with
personality modules
•
Two Cat 6/Class E channel adapters
•
Two headsets
•
Carrying case
•
Carrying strap
•
Memory card
•
USB cable for PC communications
•
DTX RS-232 serial cable for PC communications
•
Two ac adapters
•
DTX Series CableAnalyzer Users Manual
•
DTX Series CableAnalyzer Product CD
•
LinkWare Software CD
To access the Knowledge Base, log on to
www.flukenetworks.com, then click knowledge base at
the top of the page.
Unpacking
The DTX Series CableAnalyzers and optional fiber
modules come with the accessories listed below. If
something is damaged or missing, contact the place of
purchase immediately.
1
1-3
DTX Series CableAnalyzer
Technical Reference Handbook
DTX-1200
DTX-LT
•
DTX-1200 CableAnalyzer with lithium-ion battery
pack
•
DTX-LT CableAnalyzer with lithium-ion battery pack
•
DTX-LT SmartRemote with lithium-ion battery pack
•
DTX-1200 Smart Remote with lithium-ion battery
pack
•
•
Two Cat 6/Class E permanent link adapters with
personality modules
Two Cat 6/Class E permanent link adapters with
personality modules
•
One Cat 6/Class E channel adapter
•
Two Cat 6/Class E channel adapters
•
Carrying strap
•
Two headsets
•
USB cable for PC communications
•
Carrying case
•
Two ac adapters
•
Carrying strap
•
DTX Series CableAnalyzer Users Manual
•
USB cable for PC communications
•
DTX Series CableAnalyzer Product CD
•
Two ac adapters
•
LinkWare Software CD
•
DTX Series CableAnalyzer Users Manual
•
DTX Series CableAnalyzer Product CD
•
LinkWare Software CD
1-4
Getting Acquainted
Unpacking
1
DTX-MFM2 Multimode Fiber Modules (optional)
DTX-SFM2 Singlemode Fiber Modules (optional)
•
Two DTX-MFM2 Fiber Modules for testing at 850 nm
and 1300 nm
•
Two DTX-SFM2 Fiber Modules for testing at
1310 nm and 1550 nm.
•
Two 62.5/125 µm multimode reference test cords,
2 m, SC/SC
•
Two 9/125 µm singlemode reference test cords, 2 m,
SC/SC
•
Two gray mandrels for 62.5 /125 µm fiber with 3 mm
jackets
•
DTX-MFM2/GFM2/SFM2 Fiber Modules Users Manual
DTX CableAnalyzer Product CD
•
•
DTX-MFM2/GFM2/SFM2 Fiber Modules Users Manual
•
LinkWare Software CD
•
DTX CableAnalyzer Product CD
•
LinkWare Software CD
DTX-GFM2 Multimode Fiber Modules (optional)
•
Two DTX-GFM2 Fiber Modules for testing at 850 nm
and 1310 nm (for Gigabit Ethernet applications)
•
Two 50/125 µm multimode reference test cords, 2 m,
SC/SC
•
DTX-MFM2/GFM2/SFM2 Fiber Modules Users Manual
•
DTX CableAnalyzer Product CD
•
LinkWare Software CD
Note
The reference test cords and connector adapter
types provided are suitable for testing SCterminated links. Other reference test cords and
adapter types are required for other connector
types or 50 /125 µm fiber. Many are available as
accessories from Fluke Networks.
1-5
DTX Series CableAnalyzer
Technical Reference Handbook
WXWarning
Safety Information
To avoid possible fire, electric shock, or personal
injury:
Table 1-1 shows the international electrical symbols used
on the tester or in this manual.
•
Do not open the case; no user-serviceable parts
are inside.
•
Do not modify the tester.
•
Use only ac adapters approved by Fluke
Networks for use with the DTX tester to charge
the battery or power the tester.
•
When servicing the tester, use only specified
replacement parts.
•
Do not use the tester if it is damaged. Inspect
the tester before use.
•
If this equipment is used in a manner not
specified by the manufacturer, the protection
provided by the equipment may be impaired.
•
Never connect the tester to any telephony
inputs, systems, or equipment, including ISDN.
Doing so is a misapplication of this product,
which can result in damage to the tester and
create a potential shock hazard to the user.
Table 1-1. International Electrical Symbols
X
Warning: Risk of fire, electric shock, or personal
injury.
W
Warning or Caution: Risk of damage or
destruction to equipment or software. See
explanations in the manuals.
j
Do not connect this equipment to public
communications networks, such as telephone
systems.
*
Warning: Class 1 laser (OUTPUT port). Risk of
eye damage from hazardous radiation.
Class 2 laser (VFL port). Do not stare into beam.
~
1-6
Do not put products containing circuit boards
into the garbage. Dispose of circuit boards in
accordance with local regulations.
Getting Acquainted
Safety Information
•
Always turn on the tester before connecting it
to a cable. Turning the tester on activates the
tool’s input protection circuitry.
•
Do not use the tester if it operates abnormally.
Protection may be impaired.
•
To ensure maximum accuracy of copper cable
test results, perform the reference procedure
every thirty days as described under “Setting the
Reference” in Chapters 3 and 4.
•
The permanent link interface adapters may not
perform properly or may be damaged if they are
handled improperly. See pages 1-18 and 1-19 for
important handling information.
•
Turn off the tester before attaching or removing
modules.
•
Leave the module bay covers in place when the
fiber modules are not installed. See page 1-10.
•
Never remove the memory card while the
memory card’s LED is on. Doing so can corrupt
the data on the card.
WCaution
To avoid disrupting network operation, to avoid
damaging the tester or cables under test, to
avoid data loss, and to ensure maximum
accuracy of test results:
•
Never connect the tester to an active network.
Doing so may disrupt network operation.
•
Never attempt to insert any connector other
than an 8-pin modular (RJ45) connector into an
adapter’s jack. Inserting other connectors, such
as RJ11 (telephone) connectors, can permanently
damage the jack.
•
Never operate portable transmitting devices,
such as walkie-talkies and cell phones, during a
cable test. Doing so might cause erroneous test
results.
1
W* Warning: Class 1 and Class 2 Laser
Products
To avoid possible eye damage caused by
hazardous radiation, when using the fiber
modules follow the safety guidelines given in
Chapter 6 of this manual.
1-7
DTX Series CableAnalyzer
Technical Reference Handbook
Basic Features
Physical Features
The following sections introduce the tester's basic
features.
Figures 1-1 and 1-2 describe the tester’s features. Figure
1-3 describes the smart remote’s features.
1
11
F1
F2
F3
TEST
EXIT
10
2
ENTER
SAVE
9
SINGLE
TEST
MONITOR
AUTO
TEST
3
SETUP
SPECIAL
FUNCTIONS
8
7
4
TALK
6
5
amd29f.eps
Figure 1-1. Tester Front Panel Features
1-8
Getting Acquainted
Basic Features
A LCD display with backlight and adjustable
brightness.
B P: Starts the currently selected test. Activates the
tone generator for twisted pair cabling if no smart
remote is detected. The test starts when both testers
are connected.
C N: Saves Autotest results in memory.
D Rotary switch selects the tester’s modes.
G G: Press to switch the backlight between bright
and dim settings. Hold for 1 second to adjust the
display contrast.
H B C A D: Arrow keys for navigating
through screens and incrementing or decrementing
alphanumeric values.
I H: Enter key selects the highlighted item from a
menu.
J I: Exits the current screen without saving changes.
E M: On/off key.
F O: Press to use the headset to talk to the person at
the other end of the link.
1
K A B C: The softkeys provide functions
related to the current screen. The functions are
shown on the screen above the keys.
Figure 1-1. Tester Front Panel Features (cont.)
1-9
DTX Series CableAnalyzer
Technical Reference Handbook
amd33f.eps
Figure 1-2. Tester Side and Top Panel Features
1-10
Getting Acquainted
Basic Features
1
A Connector for twisted pair interface adapters.
F Headset jack for talk mode.
B Cover for the module bay. Slide off the cover to install
G Connector for the ac adapter. The LED turns on when
optional modules, such as the fiber module.
the tester is connected to ac power.
C Bail.
•
Red: Battery is charging.
D DTX-1800 and DTX-1200: Slot and activity LED for the
•
Green: Battery is charged.
•
Flashing red: Charge timeout. The battery failed
to reach full charge within 6 hours. See “If
Something Seems Wrong” in Chapter 12.
removable memory card. To eject the card, push in
then release the card.
E USB (
) and RS-232C (
: DTX-1800,
DTX-1200) ports for uploading test reports to a PC
and updating the tester’s software. The RS-232C
port uses a custom DTX cable available from Fluke
Networks. See Chapter 12 for more information.
Figure 1-2. Tester Side and Top Panel Features (cont.)
1-11
DTX Series CableAnalyzer
Technical Reference Handbook
amd30f.eps
Figure 1-3. Smart Remote Features
1-12
Getting Acquainted
Basic Features
WCaution
1
H P: Starts the test currently selected on the main
All the LEDs flash if the smart remote detects
excessive voltage on the cable. Unplug the cable
immediately if this occurs.
unit. Activates the tone generator for twisted pair
cabling if no main tester is detected. The test starts
when both testers are connected.
I O: Press to use the headset to talk to the person at
Note
The LEDs also act as a battery gauge. See Figure
1-5 on page 1-17.
the other end of the link. Press again to adjust the
volume. Press and hold to exit talk mode.
A Connector for twisted pair interface adapters.
J M: On/off key.
B Pass LED lights when a test passes.
K USB port for updating the tester’s software with a
PC.
C Test LED lights during cable tests.
L Headset jack for talk mode.
D Fail LED lights when a test fails.
E Talk LED lights when the smart remote is in talk
mode. Press Oto adjust the volume.
F Tone LED lights and the tone generator turns on
when you press P, but the main tester is not
M Connector for the ac adapter, as described in Figure
1-2.
N Cover for the module bay. Slide off the cover to install
optional modules, such as the fiber module.
connected.
G Low battery LED lights when the battery is low.
Figure 1-3. Smart Remote Features (cont.)
1-13
DTX Series CableAnalyzer
Technical Reference Handbook
Changing the Language
Powering the Tester
*WWarning
To change the tester’s language:
1
Turn the rotary switch to SETUP.
2
Use D to highlight Instrument Settings at the
bottom of the list; then press H.
3
Use Cand D to find and highlight Language
on tab 2 at the bottom of the list; then press H.
4
Use D to highlight the desired language; then
press H.
5
Use the arrow keys and H to find and change
other local settings on tabs 2, 3, and 4 under
Instrument Settings.
1-14
Read the safety information at the beginning of
Chapter 2 before using the tester.
You can power the tester with the ac adapter included or
with the removable lithium ion battery pack.
If the tester does not turn on, refer to “If Something
Seems Wrong” in Chapter 12.
Charging the Battery
•
To charge the battery, connect the ac adapter to the
battery pack, as shown in Figure 1-4.
•
You may charge the battery when it is attached or
detached from the tester. Figure 1-4 shows how to
remove the battery.
•
The battery charges fully in about 4 hours with the
tester off. A fully-charged battery lasts for at least 12
hours of typical use.
Getting Acquainted
Basic Features
1
Note
The battery will not charge at temperatures
outside of 0 °C to 45 °C (32 °F to 113 °F). The
battery charges at a reduced rate between 40 °C
and 45 °C (104 °F and 113 °F).
•
•
If the battery does not reach full charge within 6
hours, the battery LED flashes red. Verify that the
battery was within the temperature range given
above during charging and that the correct ac
adapter was used. Disconnect then reconnect ac
power and try charging the battery again. If the
battery does not charge the second time, retrain the
battery gauge as described in Chapter 12.
Charging the battery
If the battery LED flashes red or the tester will not
turn on, see “If Something Seems Wrong” in
Chapter 12.
Removing the battery
amd124f.eps
Figure 1-4. Charging and Removing the Battery
1-15
DTX Series CableAnalyzer
Technical Reference Handbook
Checking the Battery Status
3
Turn the rotary switch to SPECIAL FUNCTIONS.
The battery status icon (
) near the upper-right
corner of the tester’s main screens shows the battery’s
charge level. The smart remote’s LEDs show the smart
remote’s battery status at the end of the power-up cycle,
as shown in Figure 1-5.
4
Use D to highlight Battery Status; then press
H.
To see more information about battery status:
1
On the main Autotest screen, verify that the media
type is set to Twisted Pair. Press J Change Media
to change it if necessary.
2
Connect the tester and smart remote as shown in
Figure 1-5. You may also connect the testers through
a link.
1-16
The Time Remaining value tells you approximately
how long the main tester’s battery will last based on
the last 3 minutes of use.
The accuracy of the battery gauge may drift over time. If
the battery status information seems incorrect, retrain
the battery gauge as described in Chapter 12.
Getting Acquainted
Basic Features
84 % - 100 %
67 % - 83 %
51 % - 66 %
1
PASS
TEST
PASS
FAIL
TALK
TEST
TONE
FAIL
LOW BATTERY
PM06
34 % - 50 %
18 % - 33 %
TALK
TEST
TONE
TALK
PASS
PASS
TEST
TEST
FAIL
FAIL
TALK
TALK
TONE
TONE
LOW BATTERY
LOW BATTERY
F1
F2
F3
F1
TEST
EXIT
F2
F3
TEST
EXIT
SAVE
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
0 % - 17 %
ENTER
ENTER
SINGLE
TEST
SETUP
SPECIAL
FUNCTIONS
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
LOW BA
TEST
TEST
TALK
TALK
TALK
TALK
Permanent link and
channel adapters
Two channel adapters
Connections for using the Battery Status
function in SPECIAL FUNCTIONS
Remote battery status
shown after power-up
amd102f.eps
Figure 1-5. Checking the Battery Status
1-17
DTX Series CableAnalyzer
Technical Reference Handbook
About Link Interface Adapters and Modules
Link interface adapters provide the correct jacks and
interface circuitry for testing different types of twisted
pair LAN cabling.
The channel and permanent link interface adapters
provided are suitable for testing cabling up to Cat 6.
Optional coaxial adapters let you test coaxial cabling.
F1
F2
F1
F3
TEST
EXIT
F2
F3
TEST
EXIT
ENTER
ENTER
SAVE
SAVE
For information on other adapter types, contact Fluke
Networks or visit the Fluke Networks website.
Figure 1-6 shows how to attach and remove adapters.
WCaution
To avoid damaging the permanent link adapter
and to ensure maximum accuracy of test results,
never pinch, kink, or crush the adapter’s cable.
Follow the handling guidelines given in Figure
1-7.
Modules provide optional testing capabilities. For
example, the DTX-MFM2, DTX-GFM2, and DTX-SFM2
modules let you certify fiber optic cabling. The DTX-NSM
module lets you verify network service. See Chapters 6
and 9 for details on these modules.
1-18
SINGLE
TEST
MONITOR
TALK
AUTO
TEST
SINGLE
TEST
SETUP
SPECIAL
FUNCTIONS
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TALK
amd35f.eps
Figure 1-6. Attaching and Removing Adapters
Getting Acquainted
Basic Features
1
amd36f.eps
Figure 1-7. Handling Guidelines for Permanent Link Adapters
1-19
DTX Series CableAnalyzer
Technical Reference Handbook
The DTX-PLA001 universal permanent link adapter has a
removable personality module. These may be changed to
customize the adapter for different jack configurations.
To change the personality module (refer to Figure 1-8):
1
Ground yourself by touching a grounded, conductive
surface.
2
Remove the link interface adapter from the tester.
3
Use your fingers to unscrew the screw on the
personality module.
Static sensitive
device
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
4
Store the module in its original, static protection bag.
5
Put the new module in place and tighten the screw
with your fingers.
WCaution
Tighten the screw snugly with your fingers only.
Do not overtighten. Doing so can damage the
module or the end of the cable.
1-20
TALK
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
Personality
module
amd74f.eps
Figure 1-8. Changing the Personality Module
The optional DSP-PLCAL automated calibration kit lets
you calibrate your permanent link adapters to
compensate for physical changes that occur over time to
the adapter’s cable and other components. Contact Fluke
Networks for more information.
Getting Acquainted
Basic Features
1
Verifying Operation
The tester performs a basic self test when you turn it on.
To run a more thorough self test for an acceptance test or
as part of a routine equipment check:
Connect the main and remote testers as shown in
Figure 1-9.
2
Turn the rotary switch to SPECIAL FUNCTIONS.
3
Use D to highlight Self Test; then press H.
Permanent link
adapter
PM06
1
Channel
adapter
PASS
TEST
FAIL
TALK
4
If a fiber module is installed, select Mainframe.
5
Press P.
TONE
LOW BATTERY
F1
F2
TEST
ENTER
SAVE
SINGLE
TEST
MONITOR
If the tester reports an error, refer to “If Something Seems
Wrong” in Chapter 12.
F3
EXIT
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
TALK
amd41f.eps
Figure 1-9. Self Test Connection
1-21
DTX Series CableAnalyzer
Technical Reference Handbook
Checking the Hardware and Software Versions
The Main Autotest Screen
To see information about the tester’s hardware, software,
and the test limits and cable types databases:
The Autotest automatically runs all the tests necessary to
certify that cabling meets the requirements of the
selected test limit. You will probably use the Autotest
more than any other of the tester’s functions.
1
Connect the tester and smart remote through
adapters, as in Figure 1-9.
2
Turn the rotary switch to SPECIAL FUNCTIONS.
3
Use D to highlight Version Information; then
press H.
4
Use the softkeys to switch between the tester and
remote’s information, and between information for
the mainframe and any modules or adapters
attached.
To determine if your tester needs a software update, visit
the Fluke Networks website to see if an update is
available. See Chapter 12 for details on updating the
tester's software.
1-22
When you first turn the rotary switch to AUTOTEST, the
main Autotest screen shows settings you should check
before you start testing. Figure 1-10 describes this screen.
You can change these settings in SETUP, as described in
Chapters 2, 3, 4, and 6.
Getting Acquainted
Basic Features
1
2
11
E Outlet Configuration: The wire mapping used for testing
twisted pair cabling.
3
F Press L to check the memory status.
4
G Press K to view the results of the previous test.
5
10
1
H If a copper adapter and a fiber module are installed, press
J to change the type of media you will test.
I Store Plot Data
9
No: Plot data is not saved, which lets you save more results.
Saved results show worst margins and worst values for each
pair.
8
7
6
amd05f.eps
A The media type selected for testing.
B Battery status icon.
C Test Limit: The tester compares test results to
the selected limit to determine the PASS/FAIL
result.
D Cable Type: The type of cable to be tested.
Standard: The tester displays and saves plot data for frequencybased tests such as NEXT, return loss, and attenuation. The
tester saves data for the frequency range required by the
selected test limit.
Extended: The tester saves data beyond the frequency range
required by the selected test limit.
J Folder: The folder where results will be saved.
K Operator, Site: The person using the tester. Site: The job site
name. These are stored with saved results.
Figure 1-10. The Main Autotest Screen (for Twisted Pair Media)
1-23
DTX Series CableAnalyzer
Technical Reference Handbook
Setting User Preferences
The following sections describe how to change settings
you may want to adjust when you first start using the
tester.
Changing the Length Units
1
Turn the rotary switch to SETUP, use D to
highlight Instrument Settings; then press H.
2
Press Cto go to the tab with the Length Units
selection.
3
Use D to highlight Length Units; then press
H.
4
Use D to highlight the setting you want; then
press H.
Changing the Date, Time, and Date/Time Formats
1
Turn the rotary switch to SETUP, use D to
highlight Instrument Settings; then press H.
2
Press Cto go to the tab with the Date and Time
selections.
3
Use D to highlight the setting you want to
change; then press H.
4
To change numbers in the date or time on the Date
or Time screen, use B C to highlight the number;
then use A D to change the number.
Press N when you are done.
5
To change the date or time format, press J
Change Format on the Date or Time screen. Use
D to highlight the format you want; then press
H.
1-24
Changing the Numeric Format
The tester can show decimal fractions with a decimal
point (0.00) or a comma (0,00).
1
Turn the rotary switch to SETUP, use D to
highlight Instrument Settings; then press H.
2
Press Cto go to the tab with the Numeric Format
selection.
3
Use D to highlight Numeric Format; then press
H.
4
Use D to highlight the setting you want; then
press H.
Getting Acquainted
Setting User Preferences
Adjusting the Display Contrast
1
To set the power down timer:
1
Press and hold G.
1
2
Use B C for coarse adjustments and K Fine
L Fine for fine adjustments.
Turn the rotary switch to SETUP, use D to
highlight Instrument Settings; then press H.
2
Press C to go to the tab with the Power Down TimeOut setting; then press H.
3
Use D to highlight the setting you want; then
press H.
J Default Setting sets the contrast to the default
level.
3
Press H when you are done.
The setting is retained when you turn the tester off.
The contrast setting does not affect the battery life.
Setting the Power Down Timer
The power down timer turns off the tester after a selected
period of inactivity. The timer starts when the backlight
timer times out. If the backlight timer is disabled, the
power down timer starts whenever the tester is not being
used.
Setting the Backlight Timer
The backlight timer turns off the backlight after a
selected period of inactivity. Using the timer to turn off
the backlight helps conserve battery power.
To set the backlight timer;
1
Turn the rotary switch to SETUP, use D to
highlight Instrument Settings; then press H.
2
Press C to go to the tab with the Backlight Time-Out
setting. Use D to highlight Backlight Time-Out;
then press H.
3
Use D to highlight the setting you want; then
press H.
The smart remote turns off after 30 minutes of inactivity.
This setting is not adjustable.
Note
The power down timer is inactive when the ac
adapter is connected or when the USB or RS-232
serial port is active.
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DTX Series CableAnalyzer
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Enabling or Disabling the Beeper
Inserting and Removing the Memory Card
To enable or disable the tones for key presses and testing
progress:
Insert the memory card into the slot on the side of the
tester. Figure 1-11 shows how to insert and remove the
card.
1
2
3
Turn the rotary switch to SETUP, use D to
highlight Instrument Settings; then press H.
Press C to go to the tab with the Audible Tone
setting. Use D to highlight Audible Tone; then
press H.
Use D to highlight the setting you want; then
press H.
Formatting the Memory Card (DTX-1800 and
DTX-1200) or Internal Memory
Formatting erases all contents of the memory card or
internal memory.
To format the memory card or internal memory:
1
Turn the rotary switch to SPECIAL FUNCTIONS, then
select Memory Status.
2
For a DTX-1800 or DTX-1200 with a memory card
installed, press J to select the memory card or
internal memory.
3
Press K Format.
Overview of Memory Features
All DTX testers have internal memory that can store at
least 250 Autotest results, including graphical data. The
maximum capacity of internal memory depends on the
space taken by the tester’s software.
The DTX-1800 and DTX-1200 testers can also store up to
500 Cat 6 Autotest results, including graphical data, on a
16 MB card. The testers can also use cards with higher
capacity and secure digital (SD) memory cards.
1-26
Getting Acquainted
Overview of Memory Features
1
Creating Folders
You can organize your test results by saving them in
folders.
To create a folder:
Inserting the card
Removing the card
Push card in until
LED turns on
Push card in to
release it
amd62f.eps
Figure 1-11. Inserting and Removing
the Memory Card
1
DTX-1800, DTX-1200: Insert a memory card into the
tester.
2
Turn the rotary switch to SETUP.
3
Use D to highlight Instrument Settings; then
press H.
4
Press D to highlight Current Folder; then press
H.
5
DTX-1800, DTX-1200: Press J if necessary if you
want to create the folder on the memory card.
6
Press L Create Folder.
7
Use JKL, BCAD, and H to
enter a folder name. Press N when you are done.
8
Use AD to highlight the new folder in the
list of folders; then press H.
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DTX Series CableAnalyzer
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Setting the Storage Location (DTX-1800 and
DTX-1200)
To set the destination for saved results on a DTX-1800 or
DTX-1200 tester:
1
Turn the rotary switch to SETUP, use D to
highlight Instrument Settings; then press H.
2
Use D to highlight Result Storage Location;
then press H.
4
Options for Entering Cable IDs
When you save a test, you enter a name for the test. At a
job site, you usually name each test with the identification
code assigned to the link tested. You can enter this ID
character by character, or by selecting the ID from a pregenerated list.
To select a method for entering cable IDs:
1
Turn the rotary switch to SETUP.
2
Use D to highlight Instrument Settings, then
press H.
Note
3
Press H to select Cable ID Source.
If you change storage location, and the selected
Current Folder does not exist in the new
location, the tester creates a new folder with the
current folder’s name in the new location.
4
Use D to highlight an ID source, then press
H.
Use D to highlight Internal Memory or Memory
Card (if present); then press H.
See Chapter 12 for more information on memory
features.
1-28
Getting Acquainted
Overview of Memory Features
The tester offers the following methods for entering cable
IDs:
•
Auto Increment: You enter an ID for the first test you
save. After that, the tester increments the last
character of the ID each time you press N. See
Chapter 2 for details.
•
List: Lets you select IDs from a list created with
LinkWare software and downloaded to the tester.
See the LinkWare online help for details. The ID list
can be sequential or random.
•
Auto Sequence: Lets you select IDs from a list of
sequential IDs generated from a template in SETUP.
The horizontal, backbone, and campus templates
follow the ID formats specified in the ANSI/TIA/EIA606-A standard. The Free Form template lets you
create your own pattern. See Chapter 2 for details.
•
None: Lets you create an ID each time you press N.
1
To create a list of sequential IDs:
1
On the Auto Sequence screen, select a template.
2
On the Auto Sequence screen, select Start ID. Use the
softkeys, BC A D, and H to enter the
first ID in the sequential list. Press N when you are
finished.
3
Select Stop ID. Use the softkeys, BC A D,
and H to enter the last ID in the sequential list.
Press N when you are finished
4
Press L Sample List to see what the list will look
like.
When you use an ID from a list, the ID is marked with a
“$”.
See Chapter 2 for more information on the Auto
Sequence feature.
After you press N, you can also edit an existing ID before
using it for saving results.
1-29
DTX Series CableAnalyzer
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Using the Talk Mode
The talk mode lets you talk to the person at the other end
of a twisted pair or fiber link. Two-way communication
over twisted pair requires one good wire pair. Two-way
communication over fiber requires fiber modules and two
fibers.
Note
The talk mode is disabled during cable tests.
About LinkWare and LinkWare Stats
Software
The LinkWare Cable Test Management software
included with your tester lets you do the following:
•
Upload DTX test results to PC. See Chapter 12.
•
View test results.
•
Add ANSI/TIA/EIA-606-A administration information
to records.
1
Connect the tester and smart remote to the cabling.
2
Plug headsets into the headset jacks on the testers.
•
Organize, customize, and print professional-quality
test reports.
3
Press O on either the tester or smart remote, then
speak into the headset’s microphone.
•
Update the tester’s software.
•
Create and download data to the DTX, such as Setup
data and cable ID lists.
•
Calibrate the permanent link adapters (DSP-PLCAL kit
required)
•
Transfer custom limits between testers.
To adjust the volume at the main unit use
AD.
At the smart remote, use O to cycle through the
volume settings.
4
To exit the talk mode at the main tester, press I,
turn the rotary switch to a new position, or start a
test. At the smart remote, hold down O for two
seconds.
1-30
Getting Acquainted
About LinkWare and LinkWare Stats Software
1
Details about using LinkWare software are provided in
the LinkWare Getting Started Guide and the online help
available under Help on the LinkWare menu.
Updates to LinkWare software are available on the Fluke
Networks website.
The LinkWare Stats Statistical Report option for LinkWare
software provides statistical analysis of cable test reports
and generates browsable, graphical reports.
LinkWare software includes a demo version of LinkWare
Stats. Contact Fluke Networks or visit the Fluke Networks
website for more information on LinkWare Stats.
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DTX Series CableAnalyzer
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1-32
Chapter 2
Tutorials on Setup and Test Procedures
The tutorials in this chapter guide you through setting up
the tester, checking the tester’s status, testing twisted
pair and fiber cabling, and setting up cable ID lists.
Preparing to Save Tests
Step 1: Checking the Memory Space Available
1-1 DTX-1800, DTX-1200: Insert a memory card into the
tester.
1-2 Turn the rotary switch to SPECIAL FUNCTIONS.
1-3 Use D to highlight Memory Status; then press
H.
1-4 DTX-1800, DTX-1200: Press J Int. Memory to
switch between memory card and internal memory
status.
2-1
DTX Series CableAnalyzer
Technical Reference Handbook
Step 2: Entering Job Information
2-4 Press J Create; then use JKL,
BCAD, and H to enter your name in
the box. Press N when you are done.
Job information includes the operator name, name of
the job site, and the customer’s company name. These
settings are stored with results you save.
2-5 Figure 2-1 describes the text editing screen.
To enter job information:
2-6 Use D to highlight Site; then press H.
2-1 Turn the rotary switch to SETUP.
2-7 Press J Create; then use JKL,
BCAD, and H to enter the job site
name in the box. Press N when you are done.
2-2 Use D to highlight Instrument Settings; then
press H.
2-3 Press C to go to the tab with the Operator Name
setting. Press H to select Operator Name.
2-2
2-8 Repeat steps 2-6 and 2-7 to enter the customer’s
Company name.
Tutorials on Setup and Test Procedures
Preparing to Save Tests
2
4
3
A The characters available for use.
2
To select a character to enter in the text box, use
ADBC to highlight the character; then press H.
The character is entered to the left of the cursor.
1
B The text you are entering.
C The cursor. Use J and K to move the cursor.
D The item you are editing.
E Use JKL to move the cursor and delete characters.
5
amd120f.eps
Figure 2-1. Using the Text Editing Screen
2-3
DTX Series CableAnalyzer
Technical Reference Handbook
Step 3: Setting the Storage Location (DTX-1800
and DTX-1200)
To set the destination for saved results on a DTX-1800 or
DTX-1200 tester:
Step 4: Setting Up a Job Folder
You can organize test results by saving them in a folder
named for the job.
To set up a job folder:
3-1 Turn the rotary switch to SETUP, use D to
highlight Instrument Settings; then press H.
4-1 DTX-1800, DTX-1200: Insert a memory card into the
tester, if that is where you wan to create a folder.
3-2 Use D to highlight Result Storage Location;
then press H.
4-2 Turn the rotary switch to SETUP.
3-3 Use D to highlight Internal Memory or
Memory Card (if present); then press H.
Note
If you change storage location, and the selected
Current Folder does not exist in the new
location, the tester creates a new folder with
the current folder’s name in the new location.
4-3 Use D to highlight Instrument Settings; then
press H.
4-4 Press D to highlight Current Folder; then press
H.
4-5 Press J Create Folder.
4-6 Use JKL, BCAD, and H to
enter a folder name. Press N when you are done.
4-7 Use AD to highlight the new folder in the
list of folders; then press H.
2-4
Tutorials on Setup and Test Procedures
Certifying Twisted Pair Cabling
2
Step 5: Selecting a Cable ID Source
Certifying Twisted Pair Cabling
Cable IDs are names you enter for tests you save. You can
select IDs from a pre-generated list, or enter them
manually after each test. For this tutorial, you will enter
IDs manually.
This tutorial familiarizes you with testing twisted pair
cabling by guiding you through the following tasks:
•
Attaching twisted pair adapters
To select a cable ID source:
•
Checking the battery status and verifying operation
with twisted pair adapters
•
Running an Autotest
•
Viewing the Autotest results
•
Saving the results
5-1 Turn the rotary switch to SETUP.
5-2 Use D to highlight Instrument Settings; then
press H.
5-3 Press H to select Cable ID Source.
5-4 Use D to highlight None; then press H.
2-5
DTX Series CableAnalyzer
Technical Reference Handbook
Required Equipment
Figure 2-2 shows the equipment for testing twisted pair
cabling.
PASS
TEST
FAIL
TALK
TONE
LOW BATTERY
F1
F2
F3
2
TEST
EXIT
5
ENTER
SAVE
SINGLE
TEST
AUTO
TEST
MONITOR
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
PM
06
PM
06
TALK
3
1
4
amd40f.eps
A Tester and smart remote with battery packs
B Memory card (optional)
Note
C Two ac adapters with line cords (optional)
D For testing permanent links: two permanent link
adapters
E For testing channels: two channel adapters
To run an Autotest without connecting to cabling,
you may connect the tester and remote together
with a permanent link and a channel adapter or
two channel adapters and a patch cord.
Figure 2-2. Equipment for Certifying Twisted Pair Cabling
2-6
Tutorials on Setup and Test Procedures
Certifying Twisted Pair Cabling
2
Step 1: Checking the Battery Status and Verifying
Operation with Twisted Pair Adapters
You should check the tester and smart remote’s battery
status and verify all equipment is in good working order
before going to the job site.
Permanent link
adapter
PM06
1-1 Connect the tester and smart remote together as
shown in Figure 2-3.
Channel
adapter
1-2 Turn the rotary switch to SPECIAL FUNCTIONS.
PASS
TEST
FAIL
TALK
1-3 Use D to highlight Battery Status; then press
H. Press I when you are done.
TONE
LOW BATTERY
F1
F2
F3
TEST
EXIT
ENTER
SAVE
1-4 Use D to highlight Self Test; then press H.
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
TALK
1-5 Press Pto start the self test.
amd117f.eps
Note
Figure 2-3. Battery Status and Self Test Connections
for Twisted Pair Adapters
You can also check the battery status by
connecting channel adapters with a patch cord,
or by connecting the tester and smart remote
through a link.
2-7
DTX Series CableAnalyzer
Technical Reference Handbook
Step 2: Selecting a Test Limit, Cable Type, and
Outlet Configuration
Select the test limit, cable type, and outlet configuration
specified for the job. The outlet configuration determines
which cable pairs are tested and which pair numbers are
assigned to the pairs.
2-1 Turn the rotary switch to SETUP; then press H to
select Twisted Pair.
2-2 On the Twisted Pair menu use D and H to
select Cable Type. Cables are organized in groups:
2-7 Use D and H to select a different limit
group, if necessary, and to select the test limit
required for the job.
If you are connecting the permanent link and
channel adapters together just to try an Autotest,
select a Cat 6 Channel or equivalent limit.
SSTP: Screened/shielded twisted pair cable
2-8 If the currently-selected Outlet Configuration is not
compatible with the selected Test Limit, the Outlet
Configuration screen appears. Use AD to
highlight an appropriate configuration; then press
H.
Custom: Cable types entered by a DTX user.
Step 3: Running the Autotest
Manufacturer: Specific brands of twisted pair cable
3-1 Attach the correct adapters to the tester and smart
remote.
UTP: Unshielded twisted pair cable
FTP: Foil screened twisted pair cable
2-3 Use D to highlight the group for the cable type
you will test; then press H.
2-4 Use D to highlight the cable type you will test;
then press H.
2-5 On the Twisted Pair menu, press H to select Test
Limit.
2-8
2-6 The first Test Limit screen shows the most recentlyused limits. To see the list of test limit groups, press
JMore.
3-2 Turn on the tester and smart remote; then connect
them to the cabling. Figures 2-4 and 2-5 show
connections for permanent link and channel
installations.
Tutorials on Setup and Test Procedures
Certifying Twisted Pair Cabling
To run an Autotest without connecting to installed
cabling, connect the tester and remote as shown in
Figure 2-3 on page 2-7, or connect using two
channel adapters and a patch cord.
2
3-4 If a fiber module is installed, verify that the media
type is set to Twisted Pair. Press J Change Media
to change it if necessary.
3-5 Press P on the tester or smart remote.
3-3 Turn the rotary switch to AUTOTEST.
Horizontal cabling
Patch panel
Optional
consolidation
point
Wall
outlet
Start
permanent
link
End
permanent
link
Work area
PASS
TEST
FAIL
TALK
TONE
F1
F2
F3
TEST
EXIT
ENTER
Tester with permanent
link adapter
Smart remote with
permanent link adapter
LOW BATTERY
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
TALK
amd22a.eps
Figure 2-4. Permanent Link Test Connections
2-9
DTX Series CableAnalyzer
Technical Reference Handbook
Horizontal cabling
Hub or switch
Optional
consolidation
point
Patch cord
from hub or
switch
Work area
Patch
panels
Start
channel
Wall
outlet
Patch
cord
from PC
End
channel
PASS
TEST
FAIL
TALK
TONE
LOW BATTERY
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
Tester with
channel adapter
Smart remote with
channel adapter
TEST
TALK
TALK
amd21f.eps
Figure 2-5. Channel Test Connections
2-10
Tutorials on Setup and Test Procedures
Certifying Twisted Pair Cabling
2
Step 4: Viewing the Autotest Results
Autotest Summary
Screen
The Summary screen, shown in Figure 2-6, tells you if the
test results met the selected test limit. This screen also
shows a status for each measurement:
E: PASS
F: FAIL
i: The results are for informational purposes only.
The measurement is not required by the selected
test limit.
U: The measurement is within the tester’s accuracy
uncertainty range. See Chapter 3 for details.
To see the results for an individual measurement, use
D to highlight the test; then press H.
If the test failed, press J Fault Info. for a diagnosis of
the fault. Figure 2-6 shows a typical diagnostic screen.
The Next Fault softkey is available if the tester detected
more than one fault. See Chapter 5 for more information
on diagnosing faults.
Diagnostic
Screen
See Chapter 3 for details on twisted pair test results.
amd119f.eps
Figure 2-6. Autotest Summary and Diagnostic Screens
2-11
DTX Series CableAnalyzer
Technical Reference Handbook
Step 5: Saving the Results
5-1 Press N.
5-2 Use the text editing screen to enter a name for the
results. See Figure 2-1 on page 2-3 for details on
editing text.
Certifying Fiber Cabling
This section familiarizes you with the optional DTXMFM2, DTX-GFM2, and DTX-SFM2 fiber modules by
guiding you through the following tasks:
•
Installing fiber modules
5-3 Press N when you are done.
•
This concludes the tutorial on testing twisted pair
cabling. For more information on testing twisted pair
cabling, see Chapter 3.
Checking the battery status and verifying operation
with the fiber modules
•
Setting a reference in Smart Remote mode
•
Running an Autotest in Smart Remote mode
•
Viewing the Autotest results
•
Saving the results
Required Equipment
Figure 2-7 shows the equipment for testing fiber cabling
in Smart Remote mode.
2-12
Tutorials on Setup and Test Procedures
Certifying Fiber Cabling
2
amd46f.eps
A Tester and smart remote with fiber modules. Use
DTX-MFM2 modules for testing multimode fiber. Use
DTX-GFM2 modules for testing multimode fiber for
Gigabit Ethernet applications. Use DTX-SFM2
modules for testing singlemode fiber.
B Memory card (optional)
C Two ac adapters with line cords (optional)
D Reference test cords. Match the fiber to be tested.
E Two mandrels. Recommended when testing
multimode fiber with DTX-MFM2 modules. See
Chapter 6.
F Fiber cleaning supplies
Note
To run an Autotest without connecting to cabling,
you may connect the tester and remote together
with an SC/SC reference test cord.
Long ends must have SC connectors. For the other
connectors, match the connectors in the link.
Figure 2-7. Equipment for Testing in Smart Remote Mode (Method B)
2-13
DTX Series CableAnalyzer
Technical Reference Handbook
WCaution
Step 1: Installing the Fiber Modules
Leave the module bay covers in place when the
fiber modules are not installed.
1-1 Turn off the tester and smart remote.
1-2 Remove the cover from the back of each unit and
install a DTX-MFM2, DTX-GFM2, or DTX-SFM2
module in each unit, as shown in Figure 2-8.
Step 2: Checking the Battery Status and Verifying
Operation with Fiber Modules
2-1 Clean the tester’s connectors and the connectors on
two SC/SC reference test cords. See Chapter 6 for
details on cleaning.
2-2 Connect the tester and smart remote together, as
shown in Figure 2-9.
2-3 Turn the rotary switch to SPECIAL FUNCTIONS.
2-4 Use D to highlight Battery Status; then press
H. Press I when you are done.
2-5 Use D to highlight Self Test; then press H.
2-6 Press Pto start the self test.
amd34af.eps
Figure 2-8. Installing Fiber Modules
2-14
Tutorials on Setup and Test Procedures
Certifying Fiber Cabling
2
Step 3: Selecting a Fiber Type and Test Limit
SC to SC reference test cord
Select the cable type and test limit specified for the job.
3-1 Turn the rotary switch to SETUP.
3-2 Use D to highlight Fiber; then press H.
PASS
TEST
FAIL
TALK
TONE
F1
F2
Generic: Generic types of fiber
F3
TEST
EXIT
ENTER
Custom: Fiber types entered by a DTX user
SAVE
SINGLE
TEST
MONITOR
3-3 On the Fiber menu use D and H to select
Fiber Type. Fiber types are organized in groups:
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
Manufacturer: Specific brands of fiber cable
TALK
amd118f.eps
Figure 2-9. Self Test Connections for Fiber Modules
3-4 Use D to highlight a group for the fiber type
you will test; then press H.
3-5 Use D to highlight the fiber type you will test;
then press H.
3-6 On the Fiber menu, use A to highlight Test
Limit (if it is not highlighted); then press H.
3-7 The first Test Limit screen shows the most recentlyused limits. To see the list of test limit groups, press
JMore.
3-8 Use D and H to select a different limit
group, if necessary, and to select the test limit
required for the job.
2-15
DTX Series CableAnalyzer
Technical Reference Handbook
Step 4: Configuring the Fiber Test
•
Number of Splices: Enter the number of splices
in the cabling you will test.
•
Connector Type: Select the type of connector
used in the cabling you will test.
•
Test Method: Method B
4-1 Turn the rotary switch to SETUP.
4-2 Use D to highlight Fiber; then press H.
4-3 Use D to highlight Remote End Setup; then
press H.
4-4 Use DA to highlight Smart Remote; then
press H.
4-5 Use D and H to enter the settings listed
below. Use C to find settings on other tabs.
•
Bi-Directional: No
•
Number of Adapters: Enter the number of
adapters used in the cabling you will test. For
example, if the cabling has one connector at
each end, enter 2.
2-16
Step 5: Setting the Reference
5-1 Clean the connectors on the tester and the two
reference test cords.
5-2 Turn the rotary switch to SPECIAL FUNCTIONS. Press
H to select Set Reference. If both a fiber module
and twisted pair adapter are attached, select Fiber
Module next.
5-3 Connect the tester and smart remote as shown in
Figure 2-10; then press P.
Tutorials on Setup and Test Procedures
Certifying Fiber Cabling
2
amd145f.eps
Figure 2-10. Smart Remote Mode Reference Connections (Method B)
2-17
DTX Series CableAnalyzer
Technical Reference Handbook
Step 6: Running the Test
6-1 Clean the connectors on the cabling to be tested.
6-2 Make the connections as shown in Figure 2-11.
6-3 Turn the rotary switch to AUTOTEST. If a copper
adapter is attached, verify that the media type is set
to Fiber. Press J Change Media to change it if
necessary.
6-4 Press P.
amd146a.eps
Figure 2-11. Smart Remote Mode Test Connections (Method B)
2-18
Tutorials on Setup and Test Procedures
Certifying Fiber Cabling
2
Step 7: Viewing the Results
The Summary screen, shown in Figure 2-12, tells you if the
test results met the selected test limit. This screen also
shows a status for each measurement:
E: PASS
F: FAIL
i: The results are for informational purposes only.
The measurement is not required by the selected
test limit.
To see the results for an individual measurement, use
D to highlight the test; then press H.
See Chapter 6 for details on fiber test results.
Step 8: Saving the Results
8-1 Press N.
amd121f.eps
Figure 2-12. Summary Results Screen for an Autotest
on Fiber
8-2 Use the text editing screen to enter a name for the
results. See Figure 2-1 on page 2-3 for details on
editing text.
8-3 Press N when you are done.
This concludes the tutorial on testing fiber cabling. For
more information on testing fiber cabling, see Chapter 6.
2-19
DTX Series CableAnalyzer
Technical Reference Handbook
Using the Auto Increment and
Sequential Cable ID Features
The auto increment and sequential ID features generate
cable IDs automatically. This frees you from having to
enter IDs manually after each test.
These features are useful when you test installations with
sequentially-numbered links.
Consecutive digits increment from right to left, but other
characters do not.
Letters increment through the alphabet shown on the
text editing screen:
1A, 1B, 1C…1Y, 1Z, 1Ç…1Û, 1Ü, 1A
To use the auto increment ID feature:
1
Turn the rotary switch to SETUP.
2
Use D to highlight Instrument Settings; then
press H.
3
Press H to select Cable ID Source.
4
D to highlight Auto Increment; then press H.
5
Run a test; then press N.
Using the Auto Increment Feature
6
Enter an ID in the ID: box.
The auto increment feature increments the last character
in the fiber ID you enter.
7
Press N again.
When you use an ID from a list, the ID is marked with a
“$”.
Note
The List feature lets you select IDs from a list
created with LinkWare software and
downloaded to the tester. See the LinkWare
documentation for details.
For example, if you save a test with the ID “A0”, the tester
increments the ID as follows:
A0, A1, A2…A9, A10, A11…A99, A100, A101…
2-20
The next time you run a test and press N, the
incremented cable ID appears in the ID box. Press N
again to use the ID.
Tutorials on Setup and Test Procedures
Using the Auto Increment and Sequential Cable ID Features
Creating a List of Sequential IDs
The tester includes templates for creating a list of
sequential IDs. Three of these templates meet the
ANSI/TIA/EIA-606-A standard for documenting cabling
installations, as summarized in the next section. A fourth
template lets you create your own ID pattern.
2
For example, the following start and stop IDs could be
used for testing the cabling in two rooms where each
room has three cable drops:
Start ID: ROOM A DROP#1
Stop ID: ROOM B DROP#3
These IDs produce the following ID list:
Letters and numbers in sequential IDs increment from
right to left. The following characters are not
incremented:
•
Special characters: / # * - . , : [ ] space
•
Characters that match between the start and stop IDs.
For example if the start and stop IDs were ROOM1
and ROOM25, the characters “ROOM” would not
increment.
ROOM A DROP#1
ROOM A DROP#2
ROOM A DROP#3
ROOM B DROP#1
ROOM B DROP#2
ROOM B DROP#3
2-21
DTX Series CableAnalyzer
Technical Reference Handbook
The steps below guide you through creating a sequential
ID list for the following scenario:
•
•
You will test 12 cables in two patch panels: cables 1
through 6 in panel A and cables 1 through 6 in panel
B.
Both panels are located in telecommunications closet
A on the third floor of the building.
Your IDs will follow the ANSI/TIA/EIA-606-A standard for
horizontal links. See “About ANSI/TIA/EIA-606-A Cable
IDs” on page 2-24 for details.
1
Turn the rotary switch to SETUP.
2
Use D to highlight Instrument Settings, then
press H.
3
Press H to select Cable ID Source.
4
Use D to highlight Auto Sequence, then press
H.
5
Use D to highlight Template, then press H.
6
Use A D to highlight Horizontal, then
press H.
2-22
7
On the Auto Sequence screen, press J Default to
transfer the default pattern into the START ID and
STOP ID.
8
Use A to highlight Start ID; then press H.
9
Use JKL, BCAD, and H to
change the default ID to 03A-A01.
Press N when you are done.
10 Use D to highlight Stop ID; then press H.
11 Use JKL, BCAD, and H to
change the default ID to 03A-B06.
Press N when you are done.
12 Press L Sample List. You should see a list of 12
sequential fiber IDs: 03A-A01 through 03A-B06. If the
tester beeps instead of showing the list, check your
Start and Stop IDs for the problems listed below.
13 Press I to leave the sample list.
If the tester shows an error message, check your Start
and Stop IDs for the problems listed below.
14 Press N when you are done setting up the list. The
list is saved in the tester’s internal memory.
Tutorials on Setup and Test Procedures
Using the Auto Increment and Sequential Cable ID Features
If the ID sequence is invalid, check the following:
•
•
Verify that the types of characters in each position
match between the start and stop IDs. For example,
using the letter “O” as the third character in the Start
ID and the number “0” as the third character in the
Stop ID is not allowed.
Verify that you are not using the characters / # * - . , :
[ ] space or accented characters as incrementing
characters. You may use these characters in IDs, but
they must match between the Start and Stop IDs.
2
•
Verify that the Start and Stop IDs have the same
numbers of characters.
•
Verify that the Stop ID is not sequentially greater
than the Start ID. For example, using 25 as the Start
ID and 10 as the Stop ID is not allowed.
•
Verify that the Start and Stop IDs do not generate a
sequence with more than 3000 IDs.
To use an ID from the auto sequence list:
1
Verify that the Cable ID Source in SETUP is set to
Auto Sequence.
2
Run a test; then press N.
3
To scroll through the ID list, use AD. To
scroll one page at a time, use BC.
4
Select an ID from the ID list; then press N again.
2-23
DTX Series CableAnalyzer
Technical Reference Handbook
About ANSI/TIA/EIA-606-A Cable IDs
Horizontal Link Identifier
The following sections give basic examples of the 606-A
IDs. For detailed information, including ID formats for
other elements in cabling installations, contact the TIA to
purchase a copy of the 606-A standard.
Horizontal links run between telecommunications closets
and work areas.
The examples use the following abbreviations:
Example: 11C-D32
•
f = floor number
•
The link tested was on floor 11 in telecom room C, patch
panel D, port 32.
s = telecom room letter
•
a = patch panel letter
•
n = For a horizontal link: port number
For a backbone: backbone cable letter or number
•
d = copper pair or fiber strand number in backbone
cable
•
b = building
2-24
Format: fs-an
Backbone Cable Identifier
Backbone cables run between telecommunication closets,
usually on different floors.
Format: fs1/fs2-n.d
Example: 01B/5C-D.10
The cable tested is in the backbone cable that runs
between floor 1, telecom room B and floor 5, telecom
room C. The backbone cable is cable D. The cable or fiber
tested is fiber 10 in backbone cable D.
Tutorials on Setup and Test Procedures
Using the Auto Increment and Sequential Cable ID Features
2
Campus Cable Identifier
Campus cables are backbone cables that run between
buildings.
Format: [b1-f s1]/[b2-fs2]-n.d
Example: LBRY-01A/AUD-01A-5.16
The cable tested is in the backbone cable that runs
between the library (LBRY), floor 1, telecom room A and
the auditorium (AUD), floor 1, telecom room A. The
backbone cable is cable 5. The cable or fiber tested is
number 16 in backbone cable 5.
2-25
DTX Series CableAnalyzer
Technical Reference Handbook
2-26
Chapter 3
Certifying Twisted Pair Cabling
Setting the Reference
The reference procedure sets a baseline for insertion loss,
ELFEXT, and dc resistance measurements.
Run the tester’s reference procedure at the following
times:
•
When you want to use the tester with a different
smart remote. You can reference the tester to two
different smart remotes.
•
Every 30 days. Doing so ensures maximum accuracy
of test results.
You do not need to set the reference after changing link
interface adapters.
Note
Turn on the tester and smart remote and let
them sit for 1 minute before setting the
reference. Set the reference only after the
testers have reached an ambient temperature
between 10 °C and 40 °C (50 °F and 104 °F).
3-1
DTX Series CableAnalyzer
Technical Reference Handbook
To set the reference:
Attach permanent link and channel adapters and
make the connections shown in Figure 3-1.
2
Turn the rotary switch to SPECIAL FUNCTIONS and
turn on the smart remote.
3
Permanent link
adapter
Highlight Set Reference; then press H. If both a
fiber module and copper adapter are attached,
select Link Interface Adapter next.
PM06
1
Channel
adapter
PASS
TEST
FAIL
4
Press P.
TALK
TONE
LOW BATTERY
Testing Twisted Pair Patch Cords
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
Because up to 70 % of Cat 5e and Cat 6 patch cords fail
to meet TIA requirements, Fluke Networks recommends
testing patch cords before using them with your tester or
in a network.
Patch cord testing requires the optional DTX-PCU6S Patch
Cord Adapter Set. Contact Fluke Networks or visit the
Fluke Networks website for more information.
3-2
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
TALK
amd41f.eps
Figure 3-1. Twisted Pair Reference Connections
Certifying Twisted Pair Cabling
Twisted Pair Test Settings
3
To access the settings, turn the rotary switch to SETUP,
use D to highlight Twisted Pair; then press H.
Twisted Pair Test Settings
Table 3-1 describes the settings that apply to twisted pair
cabling tests.
Table 3-1. Twisted Pair Test Settings
Setting
Description
SETUP >
Twisted Pair >
Cable Type
Select a cable type appropriate for the type you will test. The cable types are organized by type and
manufacturer. Selecting Custom lets you create a cable type. See Chapter 10 for details.
SETUP >
Twisted Pair >
Test Limit
Select the appropriate test limit for the job. Selecting Custom lets you create a test limit. See Chapter 10
for details.
SETUP >
Twisted Pair >
NVP
Nominal velocity of propagation, which is used with the measured propagation delay to determine
cable length. The default value defined by the selected cable type represents the typical NVP for that
cable type. You may enter a different value if necessary. To determine the actual value, change the NVP
until the measured length matches the known length of a cable. Use a cable at least 30 m (100 ft) long.
See Chapter 10.
Increasing the NVP increases measured length.
-continued-
3-3
DTX Series CableAnalyzer
Technical Reference Handbook
Table 3-1. Twisted Pair Test Settings (cont.)
Setting
SETUP >
Twisted Pair >
Outlet
Configuration
Description
The Outlet Configuration setting determines which cable pairs are tested and which pair numbers are
assigned to the pairs. To see the wire map for a configuration, press J Sample from the Outlet
Configuration screen. Selecting Custom lets you create a configuration. See Chapter 10 for details.
T568B
T568A
3
1 white/green
2
2 green
3 white/orange
2
1
5 white/blue
3
1
6 orange
4
2 orange
4
2
5 white/blue
7 white/brown
2
3 white/green
3
1
4 blue
5 white/blue
3
8 brown
ATM/TP-PMD
Crossed
Token Ring
7 white/brown
2
2 green
6 orange
5 white/blue
Ethernet
1 white/green
1
4 blue
1
4 blue
8 brown
ATM/TP-PMD Straight
3 white/orange
6 green
7 white/brown
8 brown
1 white/orange
3 white/green
4 blue
USOC (1 or 2 Pair)
1
1
6 green
2
7
2
8
white/green
green
white/brown
brown
1 white/orange
2 orange
3 white/green
6 green
Ethernet Crossed
7
2
8
1
2
3
1
2
3
6
white/orange
orange
white/green
green
3
6
1
2
-continued-
3-4
Certifying Twisted Pair Cabling
Twisted Pair Test Settings
3
Table 3-1. Twisted Pair Test Settings (cont.)
Setting
SETUP > Instrument
Settings > Store Plot
Data
Description
Standard: The tester displays and saves plot data for frequency-based tests such as NEXT, return
loss, and attenuation. The tester saves data for the frequency range required by the selected
test limit.
Extended: The tester saves data beyond the frequency range required by the selected test limit.
No: Plot data is not saved, which lets you save more results. Saved results show worst margins
and worst values for each pair.
SPECIAL FUNCTIONS >
Set Reference
The tester must be referenced to the smart remote the first time the two units are used
together. You should also set the reference every 30 days. See “Setting the Reference” on page
3-1.
SETUP > Instrument
Settings
Cable ID Source, Current Folder, Result Storage Location (DTX-1800, DTX-1200), Operator, Site,
and Company. See “Preparing to Save Tests” in Chapter 2.
Settings for saving tests
3-5
DTX Series CableAnalyzer
Technical Reference Handbook
Autotest on Twisted Pair Cabling
To run the Autotest on twisted pair cabling:
Figure 3-2 shows the equipment needed for certifying
twisted pair cabling.
1
Verify that the settings listed in Table 3-1 are
appropriate.
2
Attach adapters appropriate for the job to the tester
and the smart remote.
3
Turn the rotary switch to AUTOTEST and turn on the
smart remote. Connect to the cabling, as shown in
Figure 3-3 for a permanent link or Figure 3-4 for a
channel.
4
If a fiber module is installed, you may need to press
J Change Media to select Twisted Pair as the
media type.
5
Press Pon the tester or smart remote. To stop the
test at any time, press I.
6
The tester shows the Autotest Summary screen
when the test is complete (see page 3-10). To view
results for a specific parameter, use A D
to highlight the parameter; then press H.
PASS
TEST
FAIL
TALK
TONE
LOW BATTERY
F1
F2
F3
2
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
PM
06
TALK
PM
06
1
4
3
5
amd40af.eps
A Tester and smart remote with battery packs
B Memory card (optional)
C Two ac adapters with line cords (optional)
D For testing permanent links: two permanent link
If the Autotest failed, press J Fault Info for
possible causes of the failure.
adapters
E For testing channels: two channel adapters
Figure 3-2. Equipment for Certifying Twisted Pair
Cabling
3-6
7
To save the results, press N. Select or create a cable
ID; then press N again.
Certifying Twisted Pair Cabling
Autotest on Twisted Pair Cabling
3
Horizontal cabling
Optional
consolidation
point
Work area
Patch panel
Wall
outlet
Start
permanent
link
End
permanent
link
PASS
TEST
FAIL
TALK
TONE
F1
F2
F3
TEST
EXIT
ENTER
Tester with permanent
link adapter
Smart remote with
permanent link adapter
LOW BATTERY
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
TALK
amd22f.eps
Figure 3-3. Permanent Link Test Connections
3-7
DTX Series CableAnalyzer
Technical Reference Handbook
Horizontal cabling
Hub or switch
Optional
consolidation
point
Patch cord
from hub or
switch
Work area
Patch
panels
Start
channel
Wall
outlet
Patch
cord
from PC
End
channel
PASS
TEST
FAIL
TALK
TONE
LOW BATTERY
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
Tester with
channel adapter
Smart remote with
channel adapter
TEST
TALK
TALK
amd21f.eps
Figure 3-4. Channel Test Connections
3-8
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
3
Twisted Pair Autotest Results
•
Insertion loss (attenuation)
The tests listed below apply to twisted pair cabling.
•
NEXT (near-end crosstalk) and NEXT at the smart
remote
•
Return loss
•
ACR (attenuation to crosstalk ratio) and ACR at the
smart remote
•
PSACR (power-sum attenuation to crosstalk ratio)
and PSACR at the smart remote
Note
The Autotest runs some or all of the tests listed
below, depending on the selected test limit.
•
Wire map
•
Resistance
•
Characteristic impedance
•
ELFEXT (equal level far-end crosstalk)
•
Length
•
PSELFEXT (power-sum equal level far-end crosstalk)
•
Propagation delay
•
Delay skew
3-9
DTX Series CableAnalyzer
Technical Reference Handbook
Figure 3-5 describes the Autotest Summary screen.
A PASS: All parameters are within limits.
FAIL: One or more parameters exceeds the limit.
PASS*/FAIL*: One or more parameters are within the tester’s
accuracy uncertainty range, and the “*” notation is required by the
selected test standard. See “PASS*/FAIL* Results” on page 3-12
B Press K or L to scroll the screen.
C If the test failed, press J for diagnostic information.
D Action prompt for the screen. Use D A to highlight a
parameter; then press H.
E E: The measurement was within limits.
i: The parameter was measured, but has no PASS/FAIL limit in the
selected test limit. The results are for informational purposes only.
X: The measurement exceeds the limit.
U: See “PASS*/FAIL* Results” on page 3-12.
amd77f.eps
F
The worst margin found for the test.
Figure 3-5. Autotest Summary Screen for Twisted Pair Cabling
3-10
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
Automatic Diagnostics
If an Autotest fails, press J Fault Info for diagnostic
information about the failure. The diagnostic screens
show likely causes of the failure and suggest actions you
3
can take to solve the problem. A failed test may produce
more than one diagnostic screen. In this case, press
ADBC to see additional screens.
Figure 3-6 shows examples of diagnostic screens.
amd75f.eps
Figure 3-6. Examples of Automatic Diagnostic Screens
3-11
DTX Series CableAnalyzer
Technical Reference Handbook
PASS*/FAIL* Results
A PASS* may be considered a passing result.
A result marked with an asterisk means that
measurements are in the tester’s accuracy uncertainty
range (Figure 3-7) and the “*” notation is required by
the selected test standard. These results are considered
marginal. Marginal passing and failing results are marked
with blue and red asterisks, respectively.
A FAIL* should be considered a failure.
PASS
Tester's
accuracy
uncertainty
range
PASS*
FAIL*
Limit
PASS*
FAIL
FAIL*
amd42f.eps
Figure 3-7. PASS* and FAIL* Results
3-12
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
3
Tip: The wire map test in Single Test mode features a
scanning function that runs the wire map test
continuously. This function is helpful for locating
intermittent wiring faults.
Wire Map
Wire map results show the connections between the
main and remote testers. The tester checks the cable
pairs required by the selected test limit. If the wire map
test fails, you can continue or stop the Autotest.
Figure 3-8 describes examples of wire map screens.
amd144i.bmp
amd143i.bmp
Correct wiring (568B)
Open
Shield continuity is shown if a shielded
cable type (such as FTP or SSTP) is
selected in SETUP.
Wire 3 is open 1.0 m from the tester
and 91.6 m from the smart remote.
Figure 3-8. Wire Map Examples
amd81i.bmp
Short
Wires 1 and 2 are shorted 1 m from
the smart remote.
Shorts not within a cable pair are
always show at the near end (left side)
of the wire map screen.
-continued-
3-13
DTX Series CableAnalyzer
Technical Reference Handbook
amd82i.bmp
Split pair
A wire in the 3,6 pair is crossed with a
wire in the 4,5 pair.
Reversed pair
Wires 1 and 2 are crossed.
Figure 3-8. Wire Map Examples (cont.)
3-14
amd84i.bmp
amd83i.bmp
Crossed pairs
Pairs 1,2 and 3,6 are crossed.
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
3
Resistance
Resistance results show the dc loop resistance for each
cable pair. The smart remote shorts the end of each pair
to create the loops. A pair’s resistance depends on the
integrity of the contacts in the connector, the length of
the pair, and its wire gauge.
Resistance problems always affect other tests. For
example:
•
A link that is too long has higher-than-normal
resistance and will fail the length test.
•
High-resistance connections reflect signals that cause
the return loss test to fail. The tester’s HDTDR test
tells you the distance to the bad connection.
Most standards do not have a limit for resistance. The
tester shows an i when no limit is available. Figure 3-9
shows the resistance results screen.
Tip: The resistance test in Single Test mode features a
scanning function that runs the resistance test
continuously. This function is helpful for locating
intermittent resistance faults.
amd85f.eps
Figure 3-9. Resistance Results
Characteristic Impedance
Note
Most test limits do not require the characteristic
impedance measurement. Characteristic
impedance is not displayed for these limits.
Impedance measurements require a cable at
least 13 ft (4 m) long. The tester shows
Unknown for cables shorter than this.
Characteristic impedance results show approximate
characteristic impedance of each cable pair.
3-15
DTX Series CableAnalyzer
Technical Reference Handbook
Characteristic impedance is the impedance a cable would
have if the cable were infinitely long. Proper network
operation depends on constant characteristic impedance
throughout the system’s cables and connectors. Abrupt
changes in characteristic impedance, called anomalies,
cause signal reflections that can cause network faults.
Length
Note
Differences between measured and actual
length values can be caused by variations in the
cable’s NVP value. NVP values can vary among
cable types, lots, and manufacturers. In most
cases, these differences are minor and may be
disregarded.
Length results show the length of each cable pair. The
PASS/FAIL result is assigned based on the shortest
measured length. The lengths of the other pairs are
shown for informational purposes. A 2 % to 5 %
difference in measured length among cable pairs is
normal because of the following:
•
Signals travel at slightly different speeds in each
cable pair, but the tester uses the same speed to
calculate the length of each pair.
•
The twist rate varies slightly among cable pairs. If
you untwisted and straightened all the pairs, they
would have slightly different lengths.
amd87f.eps
Figure 3-10. Length Results
Figure 3-10 shows a length results screen.
3-16
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
Propagation Delay and Delay Skew
Propagation delay is the time taken for a test pulse to
travel the length of a cable pair. The delay is measured in
nanoseconds. One nanosecond is one-billionth of a
second, or 0.000000001 second. Propagation delays vary
slightly among pairs because of small differences in
electrical characteristics and length.
3
Delay skews are the differences in propagation delays
between the shortest delay and the delays of the other
cable pairs. The shortest delay is shown as “0 ns” in the
delay skew results.
The propagation delay and delay skew results show a
limit if the measurements required by the selected test
limit. Otherwise, the results always show PASS. Figure
3-11 shows the propagation delay and delay skew results
screens.
Pair with the shortest electrical length
is usually the shortest pair
amd88f.eps
Figure 3-11. Propagation Delay and Delay Skew Results
3-17
DTX Series CableAnalyzer
Technical Reference Handbook
Insertion Loss
hardware and by leakage of electrical energy through
the cable’s insulation.
Note
Insertion loss is also known as attenuation.
Insertion loss is the loss of signal strength over the
cabling, as shown in Figure 3-12. Insertion loss is caused
by the resistance of the copper wire and connecting
At higher frequencies, signals tend to travel only near
the surface of a conductor. This “skin effect”, along with
the cabling’s inductance and capacitance, cause insertion
loss to increase with frequency.
Figure 3-13 describes the insertion loss plot.
Insertion loss
Signal
source
Signal
output
amd90f.eps
Figure 3-12. Insertion Loss is a Decrease in Signal Strength
3-18
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
3
A The overall insertion loss result. “PASS*/FAIL* Results” on
page 3-12 describes results marked with an asterisk.
1
2
B Magnification level for the plot. Use AD to zoom
in or out at the cursor’s location.
C The limit line (in red) for insertion loss. The lower the
3
4
7
5
measurements fall below the limit line, the better the
cabling performance. Press L to see plots of individual
pairs.
D Measured insertion loss for the cable pairs. Lower insertion
loss means better cabling performance.
6
E The cursor and its location on the frequency scale. When
you first view the plot, the cursor is placed at the worst
margin. Use BC to move the cursor.
F The measured insertion loss and margin at the cursor’s
amd09f.eps
position. Margin is the difference between the measured
value and the limit. Margin is negative if the pair failed.
G The horizontal scale is the frequency range in megahertz.
The vertical scale is the insertion loss range in decibels.
Figure 3-13. Insertion Loss Plot
3-19
DTX Series CableAnalyzer
Technical Reference Handbook
NEXT (Near-End Crosstalk)
NEXT results show the crosstalk attenuation between
cable pairs. NEXT is the difference in amplitude (in dB)
between a transmitted signal and the crosstalk received
on other cable pairs at the same end of the cabling.
Higher NEXT values correspond to better cabling
performance.
Because of insertion loss, crosstalk signals occurring
farther from the signal source are weaker and cause less
trouble than crosstalk nearer the source (Figure 3-14). For
this reason, NEXT is measured from both ends of the
cabling.
For NEXT failures, the tester's diagnostic screens (J
Fault Info) may show more than one possible cause for
the failure. In this case, you can use the HDTDX analyzer
results to further diagnose the problem. See Chapter 5
for details. Figure 3-15 describes the NEXT plot.
Note
For ISO/IEC 11801:2002 and EN50173:2002
standards, NEXT is not evaluated where
insertion loss at the same frequency is less than
4 dB. If insertion loss never exceeds 4 db, NEXT
results are marked with an i on the tester and
an N/A in LinkWare reports.
Signal
source
Crosstalk near
the source
Crosstalk farther
from the source
Resulting
NEXT
amd89f.eps
Figure 3-14. Near-End Crosstalk (NEXT)
3-20
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
3
A The location of the NEXT results. Press J to switch
between the tester and smart remote.
1
2
3
4
5
8
6
B The overall NEXT result. “PASS*/FAIL* Results” on page 3-12
describes results marked with an asterisk.
C Magnification level for the plot. Use AD to zoom
in or out at the cursor’s location.
D Measured NEXT for the cable pairs. Higher NEXT means
better cabling performance.
E The limit line (in red) for NEXT. The higher the
measurements rise above the limit line, the better the
cabling performance. Press L to see plots of individual
pairs.
7
F The cursor and its location on the frequency scale. When
you first view the plot, the cursor is placed at the worst
margin. Use BC to move the cursor.
amd07f.eps
G The measured NEXT and margin at the cursor’s position.
Margin is the difference between the measured value and
the limit. Margin is negative if the pair failed.
H The horizontal scale is the frequency range in megahertz.
The vertical scale is the NEXT range in decibels.
Figure 3-15. NEXT Plot
3-21
DTX Series CableAnalyzer
Technical Reference Handbook
ACR (Attenuation to Crosstalk Ratio)
ACR is like a signal-to-noise ratio. ACR values indicate
how the amplitude of signals received from a far-end
transmitter compares to the amplitude of crosstalk
produced by near-end transmissions, as shown in Figure
3-16. The tester calculates ACR as the difference (in dB)
between NEXT and attenuation (insertion loss). Higher
ACR values mean received signals are much larger than
crosstalk signals. Higher ACR values correspond to better
cabling performance.
Figure 3-17 describes the ACR plot.
Near-end
signal
source
Crosstalk
Far-end
signal
source
Crosstalk and
signal received
from far end
Crosstalk - Received Signal = ACR
amd91f.eps
Figure 3-16. Attenuation to Crosstalk Ratio (ACR)
3-22
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
3
A The location of the ACR results. Press J to switch
between the tester and smart remote.
1
2
3
4
B The overall ACR result. “PASS*/FAIL* Results” on page 3-12
describes results marked with an asterisk.
C Magnification level for the plot. Use AD to zoom
in or out at the cursor’s location.
D Measured ACR for the cable pairs. Higher ACR means better
5
8
6
cabling performance.
E The limit line (in red) for ACR. The higher the
measurements rise above the limit line, the better the
cabling performance. Press L to see plots of individual
pairs.
7
F The cursor and its location on the frequency scale. When
amd11f.eps
you first view the plot, the cursor is placed at the worst
margin. Use BC to move the cursor.
G The measured ACR and margin at the cursor’s position.
Margin is the difference between the measured value and
the limit. Margin is negative if the pair failed.
H The horizontal scale is the frequency range in megahertz.
The vertical scale is the ACR range in decibels.
Figure 3-17. ACR Plot
3-23
DTX Series CableAnalyzer
Technical Reference Handbook
Return Loss
Return loss is the difference between the power of a
transmitted signal and the power of the signals reflected
back. The signal reflections are caused by variations in
the cable’s impedance. Figure 3-18 shows some common
sources of reflections that create return loss.
High return loss means the cabling reflects very little of
the transmitted signal back to the source. High return
loss is especially important for high-speed systems, such
as Gigabit Ethernet. The bi-directional (full-duplex)
transceivers used in these systems use directional couplers
to distinguish between incoming and outgoing signals.
The couplers may interpret strong reflected signals as
incoming data, resulting in data errors.
A return loss plot indicates how well a cable’s impedance
matches its rated impedance over a range of frequencies.
Figure 3-19 describes the return loss plot.
For return loss failures, the testers diagnostic screens
(J Fault Info) may show more than one possible cause
for the failure. In this case, you can use the HDTDR
analyzer results to further diagnose the problem. See
Chapter 5 for details.
Note
For ANSI/TIA/EIA-568-B.2-3 and ISO/IEC
11801:2002 6.4.2 standards, return loss is not
evaluated where insertion loss at the same
frequency is less than 3 dB. If insertion loss never
exceeds 3 db, return loss results are marked with
an i on the tester and an N/A in LinkWare
reports.
Signal
source
Reflected
signals
Variations in materials
and construction
Connections
Kinks and other
distortions
amd93f.eps
Figure 3-18. Sources of Return Loss
3-24
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
3
A The location of the return loss results. Press J to switch
between the tester and smart remote.
1
2
3
4
5
8
6
B The overall return loss result. “PASS*/FAIL* Results” on
page 3-12 describes results marked with an asterisk.
C Magnification level for the plot. Use AD to zoom
in or out at the cursor’s location.
D Measured return loss for the cable pairs. Higher return loss
means better cabling performance.
E The limit line (in red) for return loss. The higher the
measurements rise above the limit line, the better the
cabling performance. Press L to see plots of individual
pairs.
7
F The cursor and its location on the frequency scale. When
amd12f.eps
you first view the plot, the cursor is placed at the worst
margin. Use BC to move the cursor.
G The measured return loss and margin at the cursor’s
position. Margin is the difference between the measured
value and the limit. Margin is negative if the pair failed.
H The horizontal scale is the frequency range in megahertz.
The vertical scale is the return loss range in decibels.
Figure 3-19. Return Loss Plot
3-25
DTX Series CableAnalyzer
Technical Reference Handbook
PSNEXT (Power Sum Near End Crosstalk) Test
PSNEXT results show how much each cable pair is
affected by the combined crosstalk from the other pairs.
PSNEXT is the difference (in dB) between the test signal
and the crosstalk from the other pairs received at the
same end of the cabling. The tester uses the NEXT values
to calculate PSNEXT. Higher PSNEXT values correspond to
better cabling performance.
PSNEXT results are typically a few dB lower (worse) than
worst-case NEXT results.
PSACR (Power Sum Attenuation to Crosstalk Ratio)
Test
PSACR values indicate how the amplitude of signals
received from a far-end transmitter compares to the
combined amplitudes of crosstalk produced by near-end
transmissions on the other cable pairs. PSACR is the
difference (in dB) between PSNEXT and attenuation
(insertion loss). The tester uses the PSNEXT and
attenuation results to calculate PSACR values. Higher
PSACR values mean received signals are much larger than
the crosstalk from all the other cable pairs. Higher PSACR
values correspond to better cabling performance.
PSACR is the difference (in dB) between each wire pair’s
attenuation (insertion loss) and the combined crosstalk
3-26
received from the other pairs. The tester uses the PSNEXT
and attenuation values to calculate PSACR values.
PSACR results are typically a few dB lower (worse) than
worst-case ACR results.
ELFEXT (Equal Level Far-End Crosstalk) Test
While NEXT is measured at the same end as the signal
source, FEXT (far-end crosstalk) is measured at the far
end. Because all far-end crosstalk signals travel the same
distance, they experience the same amount of
attenuation, as shown in Figure 3-20. This means that all
crosstalk signals contribute equally to noise at the far
end. This is different from near-end crosstalk. At the near
end, crosstalk occurring closer to the source contributes
more to noise than crosstalk occurring farther from the
source. (Figure 3-14).
Because of attenuation, FEXT on longer cables is less than
FEXT on shorter cables of the same type. Subtracting the
effects of attenuation normalizes the results for length
and produces ELFEXT (equal level far end crosstalk)
values. Since ELFEXT does not depend on length, it is
used instead of FEXT to evaluate cable performance.
Because all far-end crosstalk signals travel the same
distance, they tend to add up in phase. Therefore, high
ELFEXT is critical when two or more wire-pairs carry
signals in the same direction. 1000BASE-T carries bi-
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
directional signals on all four wire pairs, so ELFEXT is a
critical parameter for 1000BASE-T certification.
Like ACR, ELFEXT represents a signal-to-noise ratio for
the cabling. Higher ELFEXT values mean that data signals
received at the far end of the cabling are much larger
than crosstalk signals received at the far end. Higher
ELFEXT values correspond to better cabling performance.
NEXT and ELFEXT performance tends to be similar in
cable, but may differ greatly in connecting hardware.
3
Some connectors achieve good NEXT performance by
balancing the inductive and capacitive currents that
cause crosstalk. Since these currents are 180° out of phase
at the near-end of the cabling, they cancel out, which
eliminates crosstalk at the near end. However, currents
that cancel at the near end add up at the far end,
causing far-end crosstalk and poor ELFEXT performance.
Figure 3-21 describes the ELFEXT plot.
Signal
source
Crosstalk farther
from the input
Crosstalk near
the input
Far-end
crosstalk
amd94f.eps
Figure 3-20. Far-End Crosstalk (FEXT)
3-27
DTX Series CableAnalyzer
Technical Reference Handbook
A The location of the ELFEXT results. Press J to switch
between the tester and smart remote.
1
2
3
4
5
8
6
B The overall ELFEXT result. “PASS*/FAIL* Results” on page
3-12 describes results marked with an asterisk.
C Magnification level for the plot. Use AD to zoom
in or out at the cursor’s location.
D Measured ELFEXT for the cable pairs. Higher ELFEXT means
better cabling performance.
E The limit line (in red) for ELFEXT. The higher the
measurements rise above the limit line, the better the
cabling performance. Press L to see plots of individual
pairs.
7
F The cursor and its location on the frequency scale. When
amd13f.eps
you first view the plot, the cursor is placed at the worst
margin. Use BC to move the cursor.
G The measured ELFEXT and margin at the cursor’s position.
Margin is the difference between the measured value and
the limit. Margin is negative if the pair failed.
H The horizontal scale is the frequency range in megahertz.
The vertical scale is the ELFEXT range in decibels.
Figure 3-21. ELFEXT Plot
3-28
Certifying Twisted Pair Cabling
Running Single Tests
3
PSELFEXT Test
Running Single Tests
PSELFEXT results show how much the far end of each
cable pair is affected by the combined far-end crosstalk
from the other pairs. PSELFEXT is the difference (in dB)
between the test signal and the crosstalk from the other
pairs received at the far end of the cabling. The tester
uses the ELFEXT values to calculate PSELFEXT. Higher
PSELFEXT values correspond to better cabling
performance.
The tester’s single test mode (SINGLE TEST on the rotary
switch) lets you run individual tests for isolating cabling
failures and quickly testing repairs. You can run some
single tests without a remote. Table 3-2 shows which
tests require a smart remote.
PSELFEXT results are typically a few dB lower than worstcase FEXT results.
Single tests use the selected test limit to produce a
PASS/FAIL result for the test. Each single test also
produces results for other measurements. For example,
the wire map test also produces propagation delay and
delay skew results. To see these results, press I when
the single test is finished; then press K View Results.
To save a single test, press N, select or create a cable ID;
then press N again.
3-29
DTX Series CableAnalyzer
Technical Reference Handbook
Table 3-2. Smart Remote Requirements for Twisted Pair Single Tests
Test
Smart Remote Requirements*
HDTDX analyzer
Recommended. Without a smart remote, results for short cables may be unreliable.
HDTDR analyzer
Optional. Without a smart remote, the plot shows large reflections at the end of the cabling.
Wire Map
Recommended. Without a remote some faults, such as split pairs and opens at the far-end
connector, cannot be detected.
Resistance
Optional.
Impedance
Optional. Test is available only for limits that require the impedance measurement.
Length
Optional.
Propagation Delay
Optional.
Delay Skew
Optional.
Insertion Loss
Required.
NEXT/PSNEXT
Recommended. The NEXT test fails unless the end of the cabling is properly terminated with a
remote or resistors.
ELFEXT/PSELFEXT
Required.
ACR/PSACR
Required.
Return Loss
Recommended. The return loss test fails unless the end of the cabling is properly terminated
with a remote or resistors.
* Note: If a remote is not required for a test, the test runs without activating the toner when no remote is detected.
3-30
Certifying Twisted Pair Cabling
Monitoring Impulse Noise
Monitoring Impulse Noise
Impulse noise is electrical noise generated by fluorescent
lights, electric motors, electric heaters and air
conditioners, photocopiers, refrigerators, microwave
ovens, and other electric devices. Active links in the same
pathway can also cause noise.
Signal
source
3
Noise distorts the shape of digital signals, as shown in
Figure 3-22. Too much noise can cause transmission
errors, resulting in poor network performance.
The impulse noise test lets you monitor noise on inactive
twisted pair cabling to determine if the noise may affect
network operation.
LAN cabling
Received
signals
distorted
by noise
amd95f.eps
Figure 3-22. Causes and Effects of Noise
3-31
DTX Series CableAnalyzer
Technical Reference Handbook
The test takes noise voltage samples every second on pair
3, 6. The test produces a PASS/FAIL result if the selected
standard specifies a noise limit.
Note
Monitoring impulse noise without a smart
remote may produce unreliable test results.
To monitor impulse noise:
1
Attach twisted pair link interface adapters to the
tester and smart remote.
2
Turn the rotary switch to MONITOR and turn on the
smart remote; then connect to the testers to the
ends of the cabling.
3
Press P.
3-32
To adjust the noise threshold, press LStop; then
use A D to change the value. Press P to
resume testing.
Tip: Fluke Networks recommends a noise threshold
of 30 mV with an average pulse rate below
0.01/sec for testing 1000BASE-T (Gigabit
Ethernet) cabling.
To stop the test at any time, press I.
Note
If you disconnect the tester and smart remote
during the impulse noise test, it takes several
minutes for the remote to stop testing.
Figure 3-23 describes the impulse noise test results.
Certifying Twisted Pair Cabling
Monitoring Impulse Noise
3
1
A The average number of noise hits per second.
2
B The highest number of noise hits per second since the start of
the test. The time shows when the peak was recorded.
3
C The minimum level of noise considered to be a noise hit. To
change the threshold, press L Stop; then use A D.
D To stop the test, press L Stop.
4
amd18f.eps
Figure 3-23. Impulse Noise Test Results
3-33
DTX Series CableAnalyzer
Technical Reference Handbook
Using the Tone Generator
To use the tone generator:
The tone generator on the tester and smart remote
produces a distinct signal for locating cables and jacks
with a tone probe such as a Fluke Networks IntelliTone
probe. The tone probe converts the toner’s signal to
audible tones that get louder as you get closer to the
cable or jack transmitting the signal.
1
Attach a twisted pair adapter to the tester or smart
remote.
2
Connect the tester or smart remote to the cabling as
shown in Figure 3-24.
3
To turn on the tester’s toner, turn the rotary switch
to AUTOTEST or SINGLE TEST; then press P.
The tone generator also activates a sleeping or powereddown tester or smart remote connected to the other end
of the cabling.
To turn on the smart remote’s toner, press P.
4
Note
The tone generator does not generate the
IntelliTone signal.
Use a tone probe to locate the cable or jack
transmitting the tone.
Note
The toner's signal may not be detectable along
shielded cable, but can be detected at a patch
panel or outlet.
5
To start the test selected on the tester, connect the
far-end unit to the cabling.
To turn off the tester’s toner, press I.
To turn off the smart remote’s toner, press P.
3-34
Certifying Twisted Pair Cabling
Using the Tone Generator
3
Patch panel
IT
O ON
BE E
IN
20 TE
10
0 LL
PR
Tone probe, such as
the Fluke Networks
IntelliTone probe
PASS
TEST
FAIL
Volume
control
TALK
TONE
LOW BATTERY
Tester or
smart remote
TEST
Press
to start the toner
TALK
amd96f.eps
Figure 3-24. Using the Tone Generator
3-35
DTX Series CableAnalyzer
Technical Reference Handbook
3-36
Chapter 4
Certifying Coaxial Cabling
Certifying coaxial cabling requires the optional
DTX-COAX coaxial adapters.
Setting the Reference
The reference procedure sets a baseline for insertion loss
and resistance measurements.
Run the tester’s reference procedure at the following
times:
•
When you want to use the tester with a different
smart remote. You can reference the tester to two
different smart remotes.
•
Every 30 days. Doing so ensures maximum accuracy
of test results.
You do not need to set the reference after changing link
interface adapters.
Note
Turn on the tester and let it sit for 1 minute
before setting the reference. Set the reference
only after the testers have reached an ambient
temperature between 10 °C and 40 °C (50 °F and
104 °F).
4-1
DTX Series CableAnalyzer
Technical Reference Handbook
To set the reference, do the following:
1
Attach coaxial adapters to the main and remote
testers, screw in the F-connector to BNC adapters;
then make the connections shown in Figure 4-1.
2
Turn the rotary switch to SPECIAL FUNCTIONS and
turn on the smart remote.
3
Highlight Set Reference; then press H. If both a
fiber module and copper adapter are attached,
select Link Interface Adapter.
4
Press P.
PASS
TEST
FAIL
TALK
TONE
LOW BATTERY
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
TALK
amd140.eps
Figure 4-1. Coaxial Reference Connections
4-2
Certifying Coaxial Cabling
Coaxial Test Settings
4
To access the settings, turn the rotary switch to SETUP,
use D to highlight Coax; then press H.
Coaxial Test Settings
Table 4-1 describes the settings that apply to coaxial
cabling tests.
Table 4-1. Coaxial Cable Test Settings
Setting
Description
SETUP > Coaxial
> Cable Type
Select a cable type appropriate for the type you will test. The cable types are organized by type and
manufacturer. Selecting Custom lets you create a cable type. See Chapter 10 for details.
SETUP > Coaxial
> Test Limit
Select the appropriate test limit for the job. Selecting Custom lets you create a test limit. See Chapter 10
for details.
SETUP > Coaxial
> NVP
Nominal velocity of propagation, which is used with the measured propagation delay to determine
cable length. The default value defined by the selected cable type represents the typical NVP for that
cable type. You may enter a different value if necessary. To determine the actual value, change the NVP
until the measured length matches the known length of a cable. Use a cable at least 30 m (100 ft) long.
See Chapter 10.
Increasing the NVP increases measured length.
-continued-
4-3
DTX Series CableAnalyzer
Technical Reference Handbook
Table 4-1. Coaxial Cable Test Settings (cont.)
Setting
SETUP > Instrument
Settings > Store Plot
Data
Description
Standard: The tester displays and saves plot data for insertion loss. The tester saves data for the
frequency range required by the selected test limit.
Extended: The tester saves data beyond the frequency range required by the selected test limit.
No: Plot data is not saved, which lets you save more results. Saved results show only worst
margins and worst values for each pair.
SPECIAL FUNCTIONS >
Set Reference
The tester must be referenced to the smart remote the first time the two units are used
together. You should also set the reference every 30 days. See “Setting the Reference” on page
4-1.
Settings for saving tests
Cable ID Source, Current Folder, Result Storage Location (DTX-1800, DTX-1200), Operator, Site,
and Company. See “Preparing to Save Tests” in Chapter 2.
4-4
Certifying Coaxial Cabling
Autotest on Coaxial Cabling
4
Autotest on Coaxial Cabling
Figure 4-2 shows the equipment needed for certifying
coaxial cabling.
PASS
TEST
FAIL
TALK
TONE
2
LOW BATTERY
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
3
TEST
TALK
TALK
4
5
1
amd138.eps
A Tester and smart remote with battery packs
D F-connector-to-BNC adapters (for testing network
coaxial cabling)
B Memory card (optional)
C DTX coaxial adapters with female-to-female
E Two ac adapters with line cords (optional)
F-connector adapters installed
Figure 4-2. Equipment for Certifying Coaxial Cabling
4-5
DTX Series CableAnalyzer
Technical Reference Handbook
To run the Autotest on coaxial cabling:
1
Verify that the settings listed in Table 4-1 are
appropriate.
2
Attach coaxial adapters appropriate to the tester
and the smart remote.
3
Turn the rotary switch to AUTOTEST and turn on the
smart remote. Connect to the cabling, as shown in
Figure 4-3 for network cabling or Figure 4-4 for
video cabling.
4
4-6
If a fiber module is installed, you may need to press
J Change Media to select Coax as the media
type.
5
Press Pon the tester or smart remote. To stop the
test at any time, press I.
6
The tester shows the Autotest Summary screen
when the test is complete (see page 4-9). To view
results for a specific parameter, use A D
to highlight the parameter; then press H.
7
To save the results, press N. Select or create a cable
ID; then press N again.
Note
If you turn off the main or remote unit while
the two units are connected through coaxial
adapters, the unit will turn on again.
Certifying Coaxial Cabling
Autotest on Coaxial Cabling
4
PASS
TEST
FAIL
TALK
TONE
LOW BATTERY
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
TALK
amd139.eps
Figure 4-3. Coaxial Network Cabling Test Connections
4-7
DTX Series CableAnalyzer
Technical Reference Handbook
Connection to
coaxial cabling
Wall
outlet
Female to female
F-connector adapter
Female to female
F-connector adapter
PASS
TEST
FAIL
TALK
TONE
LOW BATTERY
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
Tester with coaxial
adapter
Smart remote with
coaxial adapter
SPECIAL
FUNCTIONS
TEST
TALK
TALK
amd142.eps
Figure 4-4. Coaxial Video Cabling Test Connections
4-8
Certifying Coaxial Cabling
Coaxial Autotest Results
4
Note
Coaxial Autotest Results
Figure 4-5 describes the Autotest Summary screen, which
lists the tests that apply to coaxial cabling.
The Autotest runs some or all of the tests shown
in Figure 4-5, depending on the selected test
limit.
A PASS: All parameters are within limits.
FAIL: One or more parameters exceeds the limit.
B E: The test passed.
i: The parameter was measured, but has no PASS/FAIL limit in
the selected test limit.
X: The test failed.
C The worst margin found for the test.
amd141f.eps
Figure 4-5. Autotest Results for Coaxial Cabling
4-9
DTX Series CableAnalyzer
Technical Reference Handbook
HDTDR Analyzer
HDTDR
The
(High-Definition Time Domain
Reflectometry) analyzer plots the locations and
magnitudes of reflections caused by impedance
anomalies. See Chapter 5.
Resistance
Resistance results show the dc loop resistance for the
center conductor and shield. The smart remote shorts the
conductor and shield to create the loop.
Most standards do not have a limit for resistance. The
tester shows an i when no limit is available.
Tip: The resistance test in Single Test mode features a
scanning function that runs the resistance test
continuously. This function is helpful for locating
intermittent faults.
4-10
Impedance
Note
Impedance measurements require a cable at
least 13 ft (4 m) long. The tester shows
Unknown for cables shorter than this.
Impedance results show the approximate characteristic
impedance of the cable at a point approximately 13 ft
(4 m) from the tester.
Characteristic impedance is the impedance a cable would
have if the cable were infinitely long. Good cabling has
relatively constant characteristic impedance throughout
the cable and connectors.
Changes in impedance cause signal reflections in cabling.
In computer networks, signal reflections can cause
network faults. In video systems, reflections can cause
poor reception.
Certifying Coaxial Cabling
Running Single Tests
4
Length
Insertion Loss
Length results show the length of the cabling.
Insertion loss is the loss of signal strength over the
cabling. Insertion loss is caused by the resistance of the
copper wire and connecting hardware and by leakage of
electrical energy through the cable’s insulation.
Note
Differences between measured and actual
length values can be caused by variations in the
cable’s NVP value. NVP values can vary among
cable types, lots, and manufacturers. In most
cases, these differences are minor and may be
disregarded.
At higher frequencies, signals tend to travel only near
the surface of a conductor. This “skin effect”, along with
the cabling’s inductance and capacitance, cause insertion
loss to increase with frequency.
Running Single Tests
Propagation Delay
Propagation delay is the time taken for a test pulse to
travel the length of the cabling. The delay is measured in
nanoseconds. One nanosecond is one-billionth of a
second, or 0.000000001 second.
The tester’s single test mode (SINGLE TEST on the rotary
switch) lets you run individual tests for isolating cabling
failures and quickly testing repairs. You can run some
single tests without a remote. Table 4-2 shows which
tests require a smart remote.
Single tests use the selected test limit to produce a
PASS/FAIL result for the test.
To save a single test, press N, select or create a cable ID;
then press N again.
4-11
DTX Series CableAnalyzer
Technical Reference Handbook
Table 4-2. Smart Remote Requirements for Coaxial Single Tests
Test
Smart Remote Requirements*
HDTDR analyzer
Optional. Without a smart remote, the plot shows large reflections at the end of the cabling.
Resistance
Smart remote or terminator required for loop resistance measurement.
Length
Not required.
Because a coaxial cable terminator eliminates signal reflections, the tester cannot measure the
length of terminated cabling. The tester shows End Not Found in this case.
Impedance
Optional.
Without a smart remote or terminator, the tester cannot measure the impedance of cables
longer than 984 ft (300 m). The tester shows Unknown in this case.
Propagation delay
Not required.
Because a coaxial cable terminator eliminates signal reflections, the tester cannot measure the
propagation delay of terminated cabling. In this case, the tester shows End Not Found.
Insertion Loss
Required.
* Note: If a remote is not required for a test, the test runs without activating the toner when no remote is detected.
4-12
Chapter 5
Diagnosing Copper Cabling Faults
Using the Automatic Diagnostics
The DTX Series testers helps you isolate cabling faults by
automatically diagnosing Autotest failures. For twisted
pair tests, press J Fault Info after a failed Autotest to
see information about the location and likely cause of
the fault.
•
Run the self test before going to the job site. See
Chapter 1 for details.
•
Be sure to select the correct test standard and cable
type for the job.
•
Send the testers to a Fluke Networks service center
every 12 months for factory calibration.
Avoiding Tester-Induced Failures
Some test failures can be avoided if the tester is properly
maintained and configured. To keep your tester in top
condition, follow these guidelines:
•
Keep the tester’s software current. The latest
software is available on the Fluke Networks website.
See Chapter 12 for details on installing updates.
•
Set the reference for the twisted pair adapters every
30 days. See Chapter 3 for details.
5-1
DTX Series CableAnalyzer
Technical Reference Handbook
Common Causes of Copper Cabling
Failures
Table 5-1 describes common causes of test failures on
twisted pair and coaxial cabling.
Table 5-1. Diagnosing Twisted Pair Test Failures
Wire Map: open
•
Wires connected to wrong pins at connector or
punchdown blocks
•
Faulty connections
•
Damaged connector
•
Damaged cable
•
Wrong Outlet Configuration selected in setup
•
Wrong application for cable
Tip: The wire map test in Single Test mode features a
scanning function that runs the wire map test
continuously. This function is helpful for locating
intermittent wiring faults.
Wire Map: split pair or reversed pair
Wires connected to wrong pins at connector or punchdown block.
-continued-
5-2
Diagnosing Copper Cabling Faults
Common Causes of Copper Cabling Failures
5
Table 5-1. Diagnosing Twisted Pair Test Failures (cont.)
Wire Map: crossed wires
•
Wires connected to wrong pins at connector or punchdown block.
•
Mix of 568A and 568B wiring standards (12 and 36 crossed).
•
Crossover cables used where not needed (12 and 36 crossed).
Wire Map: short
•
Damaged connector
•
Damaged cable
•
Conductive material stuck between pins at connector.
•
Improper connector termination
•
Wrong application for cable
“Bad patch cord” message appears (indicates excessive crosstalk over the first 2 m of the cabling)
•
Poor quality patch cord used for channel
•
Cable on permanent link interface adapter is badly distorted or damaged
•
Wrong test standard selected
-continued-
5-3
DTX Series CableAnalyzer
Technical Reference Handbook
Table 5-1. Diagnosing Twisted Pair Test Failures (cont.)
NEXT, PSNEXT, ELFEXT, PSELFEXT gives FAIL, FAIL*, or PASS* result
•
Excessive untwisting of pairs at connector
•
Poor quality patch cords
•
Poor quality connectors
•
Poor quality cable
•
Poorly matched plug and jack (Cat 6/Class E applications)
•
Incorrect link interface adapter
•
Cable compression (tight cable ties, pinches, kinks, etc.)
•
Inappropriate use of couplers
•
Excessive noise source near cabling under test. Use the
impulse noise test to check for noise.
•
Wrong test standard selected
Note
Fixing NEXT problems usually corrects ELFEXT
problems.
Tip: The HDTDX test in Single Test mode features a scanning
function that runs the HDTDX test continuously. This
function can be helpful for locating crosstalk faults
caused by cable compression and noise sources. See
page 5-9.
-continued-
5-4
Diagnosing Copper Cabling Faults
Common Causes of Copper Cabling Failures
5
Table 5-1. Diagnosing Twisted Pair Test Failures (cont.)
NEXT passes, but the plot shows that measurements exceed the limit
For ISO/IEC standards, NEXT is not evaluated where insertion loss is less than 4 dB (the 4 dB rule).
Return passes, but the plot shows that measurements exceed the limit
Return loss is not evaluated where insertion loss is less than 3 dB (the 3 dB rule).
Return loss gives FAIL, FAIL*, or PASS* result
•
Patch cord or cable impedance not 100 Ω
•
Patch cord handling causing changes in impedance
•
Excessive amount of cable jammed into outlet box
•
Tight service loops in telecommunications closet
•
Excessive untwisting of pairs at connector
•
Poor quality connectors
•
Cable impedance not uniform (poor quality cable)
Tip: The HDTDR test in Single Test mode features a scanning
function that runs the HDTDR test continuously. This
function can be helpful for locating return loss faults
caused by tight loops and cable compression. See page
5-12.
-continued-
5-5
DTX Series CableAnalyzer
Technical Reference Handbook
Table 5-1. Diagnosing Twisted Pair Test Failures (cont.)
Return loss gives FAIL, FAIL*, or PASS* result (cont.)
•
Mismatches in cable construction (such as cable from different manufacturers)
•
Water in cable jacket
•
Cable compression (tight cable ties, pinches, kinks, etc.)
•
Poorly matched plug and jack (Cat 6/Class E applications)
•
Wrong test standard selected
•
Defective link interface adapter
Insertion loss gives FAIL, FAIL*, or PASS* result
•
Cabling is too long
•
Poor quality patch cord
•
Bad connection
•
Wrong cable type in installation
•
Wrong test standard selected
-continued-
5-6
Diagnosing Copper Cabling Faults
Common Causes of Copper Cabling Failures
5
Table 5-1. Diagnosing Twisted Pair Test Failures (cont.)
Characteristic impedance exceeds the limit or an anomaly is detected
•
Bad connection
•
Cable compression (tight cable ties, pinches, kinks, etc.)
•
Mismatch of cable types
•
Water in cable jacket
•
Excessive loading at coaxial cable tap
•
Incorrect terminator value (coaxial cable)
Resistance gives FAIL, FAIL*, or PASS* result
•
Cabling is too long
•
Bad connection due to oxidized or loose contacts
•
Wire gauge is too thin
•
Wrong patch cord type used
Tip: The resistance test in Single Test mode features a
scanning function that runs the resistance test
continuously. This function is helpful for locating
intermittent resistance faults. Note that the resistance
test is available in Single Test mode only if the selected
standard has a limit for resistance.
Length gives FAIL result
•
Cable is too long (may need to remove coiled service loops)
•
NVP is set incorrectly
-continued-
5-7
DTX Series CableAnalyzer
Technical Reference Handbook
Table 5-1. Diagnosing Twisted Pair Test Failures (cont.)
Propagation delay or delay skew gives FAIL result
•
Cable is too long (may need to remove coiled service loops)
•
Cable uses different insulation materials on different pairs
Impulse noise is detected
•
Electrical devices near the cabling are generating noise pulses.
•
There is an active link in the same bundle as the cabling under test.
•
Verify that the tester and smart remote are operating correctly. Connect the units together and run an Autotest.
5-8
Diagnosing Copper Cabling Faults
The HDTDX Analyzer
5
The HDTDX Analyzer
1
The HDTDX (High-Definition Time Domain Crosstalk)
analyzer plots the locations and magnitudes of crosstalk
on the cabling under test. The analyzer, along with the
tester’s automatic diagnostics, helps you isolate the
causes of NEXT and ELFEXT failures.
Turn the rotary switch to SINGLE TEST and verify
that the test limit and cable type are correct. Change
them in SETUP if necessary.
2
Attach the appropriate interface adapters to the
tester and smart remote.
3
Turn on the smart remote; then connect the tester
and remote to the cabling.
After an Autotest, you can view HDTDX results only if the
Autotest test failed.
4
Turn the rotary switch to SINGLE TEST, select HDTDX
Analyzer; then press P.
To see HDTDX results for a failed Autotest, select HDTDX
Analyzer on the Autotest Summary screen.
5
To run the HDTDX analyzer continuously, press L
Plot by Pair to select a pair; then press H to start
the scanning function.
6
To save the results, press N. Select or create a cable
ID; then press N again.
Running the HDTDX Analyzer
To run the HDTDX analyzer as a single test:
Note
You can run the HDTDX analyzer with or
without a smart remote. Without a remote,
results on short cables may be unreliable.
Note
If Store Plot Data is set to No, the HDTDX plot
will not be included in saved results.
Figure and 5-1 describe the HDTDX plot.
5-9
DTX Series CableAnalyzer
Technical Reference Handbook
C Magnification level for the plot. Use AD
to zoom in or out at the cursor’s location.
3
2
D The distance to the end of the cabling.
E The cursor and the distance to the cursor from the
1
tester. Use BC to move the cursor.
10
4
F The crosstalk magnitude at the cursor's location.
5
G Shows the crosstalk plots by pair. Press I to return
to the plot of all pairs.
6
H Toggles the vertical magnification between 1X and
4X.
I Sets or clears the measurement marker. See J.
9
8
7
J The distance between the measurement cursors. To
amd19f.eps
A The magnitude of crosstalk. Crosstalk levels plotted are
adjusted to compensate for insertion loss. This means that
the levels represent the magnitudes of the signals as they
appear at the crosstalk source.
B The beginning and end of the cabling under test. For a
permanent link, the plot shows some of the permanent
link adapter cable before and after the cabling under test.
use the measurement cursors:
1
Press J Clear Marker if necessary; then use
BC to move the cursor to the beginning of an
area of interest. Use AD to zoom in
on the area if desired.
2
Press J Set Marker; then use BCto move the
second cursor to the end of the area of interest.
Figure 5-1. HDTDX Plot (permanent link adapters used)
5-10
Diagnosing Copper Cabling Faults
The HDTDX Analyzer
5
Recognizing Faults on HDTDX Plots
Figure 5-2 shows how some common faults appear on
HDTDX plots.
1 Bad patch cord
2 Bad section of cable
3 Bad spool of cable
amd98f.eps
A A bad patch cord about 53 m from the tester.
B Bad section of cable near the smart remote.
C A spool of cable with poor NEXT performance. This
cable produced a FAIL result. Note the crosstalk along
the entire length of the cable.
Figure 5-2. Interpreting HDTDX Plots
5-11
DTX Series CableAnalyzer
Technical Reference Handbook
The HDTDR Analyzer
The HDTDR (High-Definition Time Domain
Reflectometry) analyzer plots the locations and
magnitudes of reflections caused by impedance
anomalies. The analyzer, along with the tester’s
automatic diagnostics, helps you isolate the causes of
return loss failures.
2
Attach the appropriate interface adapters to the
tester and smart remote.
3
Turn on the smart remote; then connect the tester
and remote to the cabling.
4
Turn the rotary switch to SINGLE TEST, select HDTDR
Analyzer; then press P.
5
To run the HDTDR analyzer continuously, press L
Plot by Pair to select a pair; then press H to start
the scanning function.
6
To save the results, press N. Select or create a cable
ID; then press N again.
Running the HDTDR Analyzer
After an Autotest, you can view HDTDR results only if the
Autotest failed.
To see HDTDR results for failed Autotest, select HDTDR
on the Autotest Summary screen.
To run the HDTDR test as a single test:
Note
Though you can run the HDTDR analyzer
without a smart remote, the following steps
assume you are using a remote.
1
Turn the rotary switch to SINGLE TEST and verify
that the test limit and cable type are correct. Change
them in SETUP if necessary.
5-12
Note
If Store Plot Data is set to No, the HDTDR plot
will not be included in saved results.
Figure 5-3 describes the HDTDR analyzer.
Recognizing Faults on HDTDR Plots
Figure 5-4 shows how some common faults appear on
HDTDR plots.
Diagnosing Copper Cabling Faults
The HDTDR Analyzer
5
C Magnification level for the plot. Use AD
to zoom in or out at the cursor’s location.
3
2
D The distance to the end of the cabling.
E The cursor and the distance to the cursor from the
1
tester. Use BC to move the cursor.
10
4
F The reflection percentage at the cursor's location.
5
G Shows the reflection plots by pair. Press I to return
to the plot of all pairs.
6
H Toggles the vertical magnification between 1X and
4X.
I Sets or clears the measurement marker. See J.
9
8
7
J The distance between the measurement cursors. To
amd97f.eps
A The percentage of the HDTDR test signal reflected back to
the tester. See Figure 5-4 for details. Reflections plotted are
adjusted to compensate for insertion loss. This means that
the reflections represent the magnitudes of the signals as
they appear at the cause of the reflection.
B The beginning and end of the cabling under test. For a
permanent link, the plot shows some of the permanent
link adapter cable before and after the cabling under test.
use the measurement cursors:
1
Press J Clear Marker if necessary; then use
BC to move the cursor to the beginning of an
area of interest. Use AD to zoom in
on the area if desired.
2
Press J Set Marker; then use BCto move the
second cursor to the end of the area of interest.
Figure 5-3. HDTDR Plot (permanent link adapters used)
5-13
DTX Series CableAnalyzer
Technical Reference Handbook
1 Open
2 Short
4 Cable section with
the wrong impedance
3 Bad patch cord
5 Cable section with
poor return loss
amd100f.eps
Figure 5-4. Interpreting HDTDR Plots
5-14
Diagnosing Copper Cabling Faults
The HDTDR Analyzer
A Open on pair 1,2 near the smart remote. A positive
reflection indicates an increase in impedance. Opens
are large increases in impedance and create large
positive reflections
B Short on pair 1,2 near the smart remote. A negative
reflection indicates a decrease in impedance. Shorts are
large decreases in impedance and create large negative
reflections.
5
D A link with a section of cable that has higher
impedance (120 Ω ) than the rest of the cable. The bad
section starts at about 54 m. Note the positive pulse
where the impedance increases at the beginning of the
bad section, and the negative pulse where impedance
decreases at the end of the section.
E A link with a section of cable that has poor return loss.
The section produces reflections along its entire length.
C Bad patch cord just past the middle of the link.
Figure 5-4. Interpreting HDTDR Plots (cont.)
5-15
DTX Series CableAnalyzer
Technical Reference Handbook
5-16
Chapter 6
Certifying Fiber Optic Cabling
Overview of Features
•
The optional DTX-MFM2, DTX-GFM2, and DTX-SFM2
fiber modules are used with a DTX Series CableAnalyzer
to test and certify fiber optic cabling installations. The
fiber modules offer the following functions and features:
Interchangeable connector adapters allow reference
and test connections that meet ISO standards for
most SFF (small form factor) fiber connectors.
•
Provides pass/fail results based on industry-standard
limits.
•
•
Visual fault locator helps you locate breaks, bad
splices, bends, and check fiber continuity and
polarity.
•
FindFiber function helps you identify and verify
fiber connections.
•
Measures optical power loss and length on dualfiber cabling. The DTX-MFM2 tests multimode
cabling at 850 nm and 1300 nm. The DTX-SFM2 tests
singlemode cabling at 1310 nm and 1550 nm. The
DTX-GFM2 features a VCSEL for testing multimode
cabling at 850 nm and 1310 nm for Gigabit Ethernet
applications.
Figure 6-2 describes the fiber module's features.
Each module transmits both wavelengths (850 nm
and 1300 nm, 850 nm and 1310 nm, or 1310 nm and
1550 nm).
6-1
DTX Series CableAnalyzer
Technical Reference Handbook
Safety Information
•
Never start a test or activate the OUTPUT port or
VFL port without first connecting a fiber to the
port you will use.
•
Never look directly into the visual fault locator
output. Momentary exposure to the locator’s
output will not damage your eyes; however,
direct, long-term exposure is potentially
hazardous.
•
Do not use magnification to view the optical
outputs without proper filtering.
•
Use of controls, adjustments, or procedures not
stated herein might result in hazardous
radiation exposure.
W*Warning: Class 1 and Class 2 Laser
Products
To avoid possible eye damage caused by
hazardous radiation:
•
•
6-2
Never look directly into optical connectors. Some
sources produce invisible radiation that can
permanently damage your eyes.
Keep the fiber module’s OUTPUT port covered
with a dust cap or keep a reference test cord
attached. The OUTPUT port may be active even
when a test is not in progress. Covering the port
reduces the risk of accidental exposure to
hazardous radiation.
Certifying Fiber Optic Cabling
Safety Information
WCaution
•
To avoid damaging the tester or cables under
test, to avoid data loss, and to ensure maximum
accuracy of test results:
Cover all connectors with dust caps when not in
use.
•
Store the connector adapters for the fiber
module in the canisters provided.
•
Turn off the tester before attaching or removing
modules.
•
Do not touch the photodiode lens (see Figure
6-4).
•
Leave the module bay covers in place when the
fiber modules are not installed.
•
Do not overtighten the adapter or use tools to
tighten the adapter.
•
When using the fiber modules, use proper
cleaning procedures to clean all fiber connectors
before every use. Neglecting this step or using
improper procedures can cause unreliable test
results and may permanently damage the
connectors. See page 6-8.
•
Use a Fluke Networks FiberInspector Video
Microscope to periodically inspect the fiber
module’s OUTPUT connector for scratches and
other damage.
6
6-3
DTX Series CableAnalyzer
Technical Reference Handbook
Installing and Removing Fiber
Modules
Figure 6-1 shows how to install and remove the fiber
modules.
WCaution
Leave the module bay covers in place when the
modules are not installed.
amd34af.eps
Figure 6-1. Installing and Removing Fiber Modules
6-4
Certifying Fiber Optic Cabling
Installing and Removing Fiber Modules
6
A Button for activating the visual fault locator (B) and output port (D). See
“Using the Visual Fault Locator” in Chapter 7 and “Autotest in Far End
Source Mode” on page 6-34.
B Universal fiber connector (with dust cap) for the visual fault locator output.
The connector accepts 2.5 mm ferrules. The LED below the connector
indicates the locator’s mode (continuous or blinking).
C Input connector with dust cap. Receives optical signals for loss, length, and
amd64f.eps
power measurements. You can change the connector adapter to match the
connectors on the fiber under test. See Figure 6-3.
D SC output connector with dust cap. Transmits optical signals for loss and
length measurements.
W*Warning
Never look directly into optical
output connectors (B and D).
Some sources produce
invisible radiation that can
permanently damage your
eyes.
The LED below the connector is red when the output is transmitting the
module’s shorter wavelength, and green for the longer wavelength.
E Laser safety label (shown at right).
CAUTION
amd128i.eps
Figure 6-2. Fiber Module Features
6-5
DTX Series CableAnalyzer
Technical Reference Handbook
WCaution
Installing the Connector Adapter
You can change the fiber module's input connector
adapter to connect to SC, ST, LC, and FC fiber connectors
(Figure 6-3). Additional adapter styles may be available.
Check the Fluke Networks web site for updates.
•
Cover all connectors with dust caps when not in
use.
•
Store the connector adapters for the fiber
module in the canisters provided.
•
Do not touch the photodiode lens (see Figure
6-4).
•
Do not overtighten the adapter or use tools to
tighten the adapter.
To install a connector adapter, refer to Figure 6-4 and do
the following:
amd37f.eps
1
Locate the slot in the fiber module connector and
the key on the adapter ring.
2
Holding the adapter so it does not turn in the nut,
align the adapter's key with the module connector's
slot and slide the adapter onto the connector.
3
Screw the nut onto the module connector.
Figure 6-3. SC, ST, LC, and FC Connector Adapters
6-6
Certifying Fiber Optic Cabling
Installing the Connector Adapter
6
amd99f.eps
Figure 6-4. Installing the Connector Adapter
6-7
DTX Series CableAnalyzer
Technical Reference Handbook
Verifying Operation
Essentials for Reliable Fiber Test
Results
1
Clean the tester’s connectors and the connectors on
two SC/SC reference test cords.
2
Connect the tester and smart remote together, as
shown in Figure 6-1.
To get reliable fiber test results, you must follow proper
cleaning and referencing procedures and, in some cases,
use mandrels during testing.
3
Turn the rotary switch to SPECIAL FUNCTIONS.
Cleaning Connectors and Adapters
4
Use D to highlight Self Test; then press H.
5
Press Pto start the self test.
SC to SC reference test cord
Always clean and inspect fiber connectors before making
connections. Use 99 %-pure isopropyl alcohol and
optical-grade wipes or swabs to clean connectors as
follows:
Bulkhead Connectors and the Fiber Module's Output
Connector
Note
Use a 2.5 mm foam swab for cleaning the fiber
module's output connector.
PASS
TEST
FAIL
TALK
TONE
F1
F2
1
Dip the tip of a foam swab in alcohol; then touch the
swab to a dry wipe.
2
Touch a new, dry swab to the alcohol spot on the
wipe. Push the swab into the connector; twist it
around 3 to 5 times against the endface, then
remove and dispose of the swab.
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
TALK
amd118f.eps
Figure 6-5. Self Test Connections for Fiber Modules
6-8
Certifying Fiber Optic Cabling
Essentials for Reliable Fiber Test Results
3
Dry the connector with a dry swab by twisting it
around in the connector 3 to 5 times.
4
Inspect connectors with a fiber microscope, such as
the Fluke Networks FiberInspector Video Microscope
before making connections.
Fiber Module's Input Connector
Note
Typically, the input connector requires cleaning
only if it has been touched.
1
Remove the connector adapter to expose the
photodiode lens (see Figure 6-4).
2
Use the method described in steps 1 and 2 above to
dampen a swab with alcohol.
3
Twist the damp swab around against the lens 3 to 5
times; then twist a dry swab around against the lens
3 to 5 times.
6
Connector Adapters and Fiber Adapters
Periodically clean connector adapters and fiber adapters
with a swab and alcohol. Dry with a dry swab before use.
Connector Ends
Wipe the end of the ferrule with a swab or wipe lightly
moistened with alcohol. Dry with a dry swab or wipe.
Always cover unused connectors with dust caps or plugs.
Clean dust plugs periodically with a swab or wipe and
alcohol.
6-9
DTX Series CableAnalyzer
Technical Reference Handbook
About Setting the Reference
The reference serves as the baseline power level for loss
measurements. Regular referencing helps account for
minor variations in source power and connection
integrity. Also, since the reference is the baseline for
measurements, the losses of the reference test cords and
adapters used during referencing are excluded from test
results.
Note
Turn on the tester and smart remote and let
them sit for 5 minutes before setting the
reference. Allow additional time if the modules
have been stored above or below ambient
temperature.
You should set the reference at these times:
•
At the beginning of each day using the remote end
setup (Figures 6-10 through 6-18) you will use that
day.
•
Anytime you reconnect a reference test cord to the
module’s output or other source.
•
Anytime the tester warns you that the reference is
out of date.
6-10
•
Anytime you see a negative loss measurement. (See
Chapter 8.)
You must set the reference at these times:
•
Anytime you change the fiber module in the tester
or smart remote.
•
Anytime you start using a different smart remote.
•
Anytime you change the Test Method in Setup.
•
Twenty-four hours after the reference was
previously set.
WCaution
Do not disconnect the reference test cords from
the testers' output ports after setting the
reference. Doing so may alter the amount of
optical power launched into the fiber and
invalidate the reference.
Reference values should not change by more than a few
tenths of a dB from day to day. Larger changes may
indicate a problem with the reference test cords or
connections.
See the sections on Smart Remote, Loopback, and Far
End Source modes for details on setting the reference for
each mode.
Certifying Fiber Optic Cabling
Essentials for Reliable Fiber Test Results
6
After you set the reference, you can enter the lengths of
the reference test cords used for reference and test
connections. The lengths are included with saved results
to meet TSB-140 reporting requirements for fiber test
results.
Selecting Reference Test Cords
The DTX Fiber Modules come with high-quality reference
test cords.
To ensure that your measurements are accurate and
repeatable, use reference test cords provided by Fluke
Networks or cords of the same quality. See "Replacing
Fiber Reference Test Cords" in Chapter 12.
Testing Your Reference Test Cords
You should test your reference test cords before each
job. Use another set of known-good cords to set a
reference and run an Autotest on other cords in Smart
Remote or Loopback mode. See pages 6-19 and 6-26 for
details on running these tests.
6-11
DTX Series CableAnalyzer
Technical Reference Handbook
Using Mandrels for Testing Multimode Fiber
You should use mandrels when testing multimode fiber
with the DTX-MFM2 fiber modules. Mandrels can
improve measurement repeatability and consistency.
They also allow the use of LED light sources to certify 50
µm and 62.5 µm fiber links for current and planned high
bit-rate applications, such as Gigabit Ethernet and 10
Gigabit Ethernet.
WCaution
Do not use mandrels when testing with the
DTX-GFM2 fiber modules.
The gray mandrels included with the DTX-MFM2 are
compliant with TIA/EIA-568-B for 62.5 µm fiber with a
3 mm jacket. Mandrels for 50 µm fiber are available from
Fluke Networks. Refer to the appropriate standard for
mandrel requirements if you follow other standards.
Table 6-1 shows a partial list of mandrel requirements for
TIA and ISO standards.
Figure 6-6 shows how to wrap the fiber around a
mandrel. Place mandrels on the tester’s output fibers, as
shown in Figures 6-9 through 6-18.
In the reference and test connection diagrams shown on
the tester, mandrels are indicated by a loop in the fiber.
Table 6-1. TIA/EIA-568-B.1 and ISO/IEC TR 14763-3 Mandrel Requirements
Fiber
core size
50 µm
62.5 µm
6-12
Wraps Around
Mandrel
Mandrel Diameter for
250 µm Buffered Fiber
Mandrel Diameter for 3 mm
(0.12 in) Jacketed Cable
TIA/EIA-568-B.1 7.1
5
25 mm (1.0 in)
22 mm (0.9 in)
ISO/IEC TR 14763-3 6.22
5
15 mm (0.6 in)
15 mm (0.6 in)
TIA/EIA-568-B.1 7.1
5
20 mm (0.8 in)
17 mm (0.7 in)
ISO/IEC TR 14763-3 6.22
5
20 mm (0.8 in)
20 mm (0.8 in)
Standard
Certifying Fiber Optic Cabling
Essentials for Reliable Fiber Test Results
6
Place top wrap
in groove under
retainer
Wrap 5 times
in grooves
Right:
no bends
at retainer
Wrong:
bends at
retainer
amd67f.eps
Figure 6-6. Wrapping a Reference Test Cord Around a Mandrel
6-13
DTX Series CableAnalyzer
Technical Reference Handbook
To access the fiber test settings turn the rotary switch to
SETUP; then select Fiber. Use BC to see different tabs.
Fiber Test Settings
Table 6-2 describes the test settings that apply to fiber
cabling.
Table 6-2. Fiber Test Settings
Setting
Description
SETUP > Fiber >
Fiber Type
Select a fiber type that is appropriate for the type you will test. Selecting Custom lets you create a
fiber type. See Chapter 10 for details.
SETUP > Fiber >
Test Limit
Select the appropriate test limit for the job. The tester compares the fiber test results to the
selected test limit to produce PASS or FAIL results. Selecting Custom lets you create a test limit. See
Chapter 10 for details.
SETUP > Fiber >
Remote End Setup
Use Smart Remote mode for testing dual-fiber cabling.
Use Loopback mode for testing reference test cords, patch cords, and cable spools.
Use Far End Source mode with an optical source for testing individual fibers.
SETUP > Fiber >
Bi-Directional
When enabled in Smart Remote or Loopback mode, the tester prompts you to swap the test
connections halfway through the test. The tester can then make bi-directional measurements for
each fiber at each wavelength (850 nm/1300 nm, 850 nm/1310 nm, or 1310 nm/1550 nm).
-continued-
6-14
Certifying Fiber Optic Cabling
Fiber Test Settings
6
Table 6-2. Fiber Test Settings (cont.)
Setting
Description
If the selected limit uses a calculated loss limit, enter the number of adapters and splices that will be
SETUP > Fiber >
Number of Adapters added to the fiber path after the reference is set. Figure 6-7 shows an example of how to determine
the Number of Adapters setting.
SETUP > Fiber >
Only limits that use maximum values for loss per km, loss per connector, and loss per splice use a
Number of Splices
calculated limit for overall loss. For example, limits for fiber backbones use a calculated loss limit.
SETUP > Fiber >
Connector Type
Select the type of connector used in the cabling. This setting affects only the diagrams shown for
reference connections. If the cabling's connector type is not listed, use General.
SETUP > Fiber >
Test Method >
Method A, B, C
Loss results include connections added after referencing. The reference and test connections
determine which connections are included in results. The Test Method refers to the number of end
connections included:
Method A: Loss results include one connection at one end of the link.
Method B: Loss results include connections at both ends of the link. Select this method for
connections shown in this manual. See "About Method B Connections" on page 6-18.
Method C: Loss results exclude connections at the ends of the link. Only the fiber loss is measured.
Different standards have different names for the three test methods. See Appendix A for details.
The Test Method setting does affect the reference and test connection diagrams shown on the
tester's display. The diagrams show connections for the method selected.
-continued-
6-15
DTX Series CableAnalyzer
Technical Reference Handbook
amd65f.eps
Figure 6-7. Example of How to Determine the Number of Adapters Setting (singlemode example; mandrels not used)
6-16
Certifying Fiber Optic Cabling
Fiber Test Settings
6
Table 6-2. Fiber Test Settings (cont.)
Setting
Description
SETUP > Fiber >
Index of Ref. Source (n)
> User Defined or
Default
The tester uses the index of refraction (n) defined in the currently selected fiber type (Default) or
a value you define (User Defined). The default value defined by the selected fiber type
represents the typical value for that fiber type. You may enter a different value if necessary. To
determine the actual value, change the index of refraction until the measured length matches
the known length of a fiber.
Increasing the index of refraction decreases the reported length.
SPECIAL FUNCTIONS >
Set Reference
Setting a reference sets the baseline power level for loss measurements. See “About Setting the
Reference” on page 6-10.
Patch Lengths
(softkey on the View
Connections screen)
After you set the reference, you can enter the lengths of the reference test cords used. The
lengths you enter do not affect measurements. They are included with saved results to meet
TSB-140 reporting requirements.
SETUP > Instrument
Settings
Cable ID Source, Current Folder, Result Storage Location (DTX-1800, DTX-1200), Operator, Site,
and Company. See “Preparing to Save Tests” in Chapter 2.
Settings for saving tests
6-17
DTX Series CableAnalyzer
Technical Reference Handbook
About Method B Connections
The reference and test connections shown in this manual
produce Method B results. Method B results include the
loss of the fiber plus the loss of the connections at both
ends of the link. To ensure accurate results, the
connection to the fiber module's output port must not
be disconnected after the reference is set. Using
connector adapters that match the connectors in the
fiber under test lets you connect to the fiber without
disturbing the output port connection.
WCaution
If you disconnect the reference test cords from
the tester’s or smart remote’s output port after
setting the reference, you must set the
reference again to ensure valid measurements.
6-18
If you do not have the correct connector adapters, see
Appendix B for modified Method B and alternative
connections that produce Method B results.
Certifying Fiber Optic Cabling
Autotest in Smart Remote Mode
Autotest in Smart Remote Mode
Use Smart Remote mode to test and certify dual-fiber
cabling.
6
In this mode, the tester measures loss, length, and
propagation delay on two fibers at two wavelengths in
one or both directions.
Figure 6-8 shows the equipment required for testing
fiber in Smart Remote mode.
amd46f.eps
A Tester and smart remote with fiber modules and
connector adapters installed. Match connector adapters
to the connectors in the link.
B Memory card (optional)
C Two ac adapters with line cords (optional)
D Reference test cords. Match the fiber to be tested. Long
ends must have SC connectors. For the other
connectors, match the connectors in the link.
E Two mandrels. Recommended when testing
multimode fiber with DTX-MFM2 modules. See page
6-12.
F Fiber cleaning supplies
Figure 6-8. Equipment for Testing in Smart Remote Mode (Method B)
6-19
DTX Series CableAnalyzer
Technical Reference Handbook
Setting the Reference for Smart Remote Mode
1
Turn on both testers and let them sit for 5 minutes.
Allow additional time if the modules have been
stored above or below ambient temperature.
2
Turn the rotary switch to SETUP, then select Fiber.
3
Select Remote End Setup, then select Smart Remote.
4
Turn the rotary switch to SPECIAL FUNCTIONS, then
select Set Reference. If both a fiber module and a
twisted pair or coaxial adapter are attached, select
Fiber Module next.
6
The View Reference screen shows the reference
values and the date and time the reference was set.
7
5
Clean the connectors on the tester, smart remote,
and reference test cords. Connect the tester and
smart remote as shown on the tester.
Notes
The Set Reference screen shows reference
connections for the selected test method. Figure
6-9 shows connections for Method B.
The reference test cords in the tester’s diagrams
are numbered. If you want to meet TSB-140
reporting requirements, you can enter lengths
for each reference test cord number after
setting the reference.
6-20
Press P.
Press K OK.
The View Connections screen shows the test
connections for the selected test method.
8
To enter reference test cord lengths to meet TSB-140
reporting requirements, press J Patch Lengths.
On the Patch Lengths screen, enter the lengths of
the reference test cords.
Press N when you are done.
WCaution
Do not disconnect the reference test cords from
the tester’s or smart remote’s output port after
setting the reference. If you do, you must set
the reference again to ensure valid
measurements.
Certifying Fiber Optic Cabling
Autotest in Smart Remote Mode
6
amd145f.eps
Figure 6-9. Smart Remote Mode Reference Connections (Method B)
6-21
DTX Series CableAnalyzer
Technical Reference Handbook
Running the Autotest in Smart Remote Mode
WCaution
6
Press P.
7
If Open or Unknown appears as the status, try the
following:
If the reference test cords have been
disconnected from the tester’s or smart
remote’s output since the reference was set,
you must set the reference again to ensure
valid measurements.
1
2
Turn on the tester and smart remote and let them sit
for 5 minutes. Allow additional time if the modules
have been stored above or below ambient
temperature.
Verify that the settings described in Table 6-2 are
appropriate.
3
Clean the connectors on the cabling to be tested.
4
Connect the tester to the cabling. Figure 6-10 shows
test connections for Method B.
5
Turn the rotary switch to AUTOTEST. Verify that the
media type is set to Fiber. Press J Change Media
to change it if necessary.
6-22
8
•
Verify that all connections are good.
•
Verify that the remote tester is on.
•
Try different connections to the cabling until
the test continues. See “Using FindFiber in Smart
Remote Mode” on page 6-44 for details on
FindFiber messages.
•
Use a the visual fault locator to verify fiber
continuity.
To save the results, press N, select or create a fiber
ID for one fiber; then press N.
Select or create a fiber ID for the other fiber; then
press N again.
Certifying Fiber Optic Cabling
Autotest in Smart Remote Mode
6
amd146f.eps
Figure 6-10. Smart Remote Mode Test Connections (Method B)
6-23
DTX Series CableAnalyzer
Technical Reference Handbook
Figure 6-11 describes the Summary screen and loss results
screen for an unsaved, single-directional Autotest in
Smart Remote mode.
Smart Remote Mode Autotest Results
The Summary screen appears when the test is finished.
To see more detailed results, use D to highlight a
measurement; then press H.
For bi-directional results in Smart Remote mode, see
“Bi-Directional Testing” on page 6-42.
3
1
4
5
2
6
7
8
amd26f.eps
Figure 6-11. Smart Remote Mode Summary and Loss Result Screens (unsaved, single-directional)
6-24
Certifying Fiber Optic Cabling
Autotest in Smart Remote Mode
Note
The results described here are for an unsaved test.
Unsaved tests for Smart Remote mode show results
for both fibers. Saved tests are saved in two records.
Each saved record shows results for one fiber.
To see the propagation delay, select the length result.
Propagation delay is half the time taken for a signal to
travel from the main tester to the remote and back
again. Propagation delay is measured in nanoseconds
(ns).
A The overall result for the test.
C The overall result for the loss measurement.
B Overall results for the two fibers (E is PASS, F is FAIL):
D The measured loss for the fiber.
Input Fiber/Output Fiber: The fiber connected to the
tester’s input and output ports, respectively.
Loss (Remote -> Main): Loss on the fiber connected
between the remote’s output and the main tester’s
input.
Loss (Main ->Remote): Loss on the fiber connected
between the main tester’s output and the remote’s
input.
Length: Half of the length from the main tester to the
remote and back again. This equals the length of one
fiber if the two fibers are equal length.
6
Note
If loss is negative, set the reference again and retest
the cabling. See Chapter 8 for more information on
negative loss.
E The maximum loss allowed by the selected test limit.
F The difference between the limit and the measured loss.
Margin is negative if the loss exceeded the limit.
G Loss meters for the two wavelengths. Values in the red
zone exceed the selected test limit.
H Press L View Ref. to view the reference information.
Figure 6-11. Smart Remote Mode Summary and Loss Result Screens (cont.)
6-25
DTX Series CableAnalyzer
Technical Reference Handbook
Autotest in Loopback Mode
Use Loopback mode to test spools of cable, segments of
uninstalled cable, and patch cords.
6-26
In this mode, the tester measures loss, length, and
propagation delay at two wavelengths in one or both
directions.
Figure 6-12 shows the equipment required for testing
fiber in Loopback mode.
Certifying Fiber Optic Cabling
Autotest in Loopback Mode
6
amd49f.eps
A Tester with fiber module and connector adapter
installed (match connector adapter to the connectors in
the link)
B Memory card (optional)
E Two adapters of the appropriate type
F Mandrel Recommended when testing multimode fiber
with DTX-MFM2 modules. See page 6-12.
G Fiber cleaning supplies
C AC adapter with line cord (optional)
D Reference test cord. Match the fiber to be tested. Long
end must have SC connector. For the other connectors,
match the connectors in the link.
Figure 6-12. Equipment for Testing in Loopback Mode (Method B)
6-27
DTX Series CableAnalyzer
Technical Reference Handbook
Setting the Reference in Loopback Mode
1
Turn on the tester and let it sit for 5 minutes. Allow
additional time if the modules have been stored
above or below ambient temperature.
2
Turn the rotary switch to SETUP; then select Fiber.
3
Select Remote End Setup; then select Loopback.
4
Turn the rotary switch to SPECIAL FUNCTIONS; then
select Set Reference. If both a fiber module and a
twisted pair or coaxial adapter are attached, select
Fiber Module next.
6
The View Reference screen shows the reference
values and the date and time the reference was set.
7
5
Clean the connectors on the tester and reference test
cords. Connect the reference test cords as shown on
the tester.
Notes
The Set Reference screen shows reference
connections for the selected test method. Figure
6-13 shows connections for Method B.
The reference test cords in the tester’s diagrams
are numbered. If you want to meet TSB-140
reporting requirements, you can enter lengths
for each reference test cord number after
setting the reference.
6-28
Press P.
Press K OK.
The View Connections screen shows the test
connections for the selected test method.
8
To enter reference test cord lengths to meet TSB-140
reporting requirements, press J Patch Lengths.
On the Patch Lengths screen, enter the lengths of
the reference test cords.
Press N when you are done.
WCaution
Do not disconnect the reference test cords from
the tester’s output after setting the reference. If
you do, you must set the reference again to
ensure valid measurements.
Certifying Fiber Optic Cabling
Autotest in Loopback Mode
6
amd147f.eps
Figure 6-13. Loopback Mode Reference Connections (Method B)
6-29
DTX Series CableAnalyzer
Technical Reference Handbook
Running the Autotest in Loopback Mode
WCaution
If the reference test cords have been
disconnected from the tester’ output since the
reference was set, you must set the reference
again to ensure valid measurements.
1
Turn on the tester and let it sit for 5 minutes. Allow
additional time if the module has been stored above
or below ambient temperature.
2
Verify that the settings described in Table 6-2 are
appropriate.
3
Clean the connectors on the cabling to be tested.
6-30
4
Connect the tester to the cabling. Figure 6-14 shows
connections for Method B.
5
Turn the rotary switch to AUTOTEST. Verify that the
media type is set to Fiber. Press J Change Media
to change it if necessary.
6
Press P.
7
To save the results, press N; select or create a fiber
ID; then press N again.
Certifying Fiber Optic Cabling
Autotest in Loopback Mode
6
amd148f.eps
Figure 6-14. Loopback Mode Test Connections (Method B)
6-31
DTX Series CableAnalyzer
Technical Reference Handbook
Figure 6-15 describes the Summary screen and loss results
screen for a single-directional Autotest in Loopback mode.
Loopback Mode Autotest Results
The Summary screen appears when the test is finished.
For bi-directional results in Loopback mode, see
“Bi-Directional Testing” on page 6-42.
To see more detailed results, use D to highlight a
measurement; then press H.
3
1
4
2
5
6
7
8
amd27f.eps
Figure 6-15. Loopback Mode Summary and Loss Result Screens (single-directional)
6-32
Certifying Fiber Optic Cabling
Autotest in Loopback Mode
A The overall result for the test.
B Overall results for the fiber (E is PASS, F is FAIL):
Loss (Output -> Input): Loss on the fiber connected
between the tester’s output and input ports.
Length: The length of the fiber between the tester’s
output and input ports. To see the propagation delay,
select the length result. Propagation delay is the time
taken for a signal to travel between the tester’s output
and input ports. Propagation delay is measured in
nanoseconds (ns).
C The overall result for the loss measurement.
6
D The measured loss for the fiber.
Note
If loss is negative, set the reference again and retest
the cabling. See Chapter 8 for more information on
negative loss.
E The maximum loss allowed by the selected test limit.
F The difference between the limit and the measured loss.
Margin is negative if the loss exceeded the limit.
G Loss meters for the two wavelengths. Values in the red
zone exceed the selected test limit.
H Press L View Ref. to view the reference information.
Figure 6-15. Loopback Mode Summary and Loss Result Screens (cont.)
6-33
DTX Series CableAnalyzer
Technical Reference Handbook
Autotest in Far End Source Mode
Use Far End Source mode to measure power or power
loss at one wavelength on individual fibers.
Far End Source mode requires a stand-alone optical
source, such as a DTX smart remote with a fiber module.
You can also use other sources, such as a Fluke Networks
SimpliFiber source or LS-1310/1550 laser source.
6-34
Figure 6-16 shows the equipment required for measuring
loss in Far End Source mode.
Note
The Autotest in Far End Source mode does not
show a PASS/FAIL result, limit, or margin if the
selected test limit calculates loss based on fiber
length. An example of such a limit is the
TIA-568B Fiber Backbone limit. The tester does
not measure length in Far End Source mode.
Certifying Fiber Optic Cabling
Autotest in Far End Source Mode
6
amd51f.eps
A Tester and smart remote with fiber modules and
connector adapters installed (match connector
adapters to the connectors in the link)
B Memory card (optional)
C Two AC adapters with line cords (optional)
E Reference test cord. Match the fiber and connectors in
the link.
F Mandrel. Recommended when testing multimode fiber
with DTX-MFM2 modules. See page 6-12.
G Fiber cleaning supplies
D Reference test cord. Match the fiber to be tested. SC
connector at one end. Match the link connectors at the
other end.
Figure 6-16. Equipment for Testing in Far End Source Mode (Method B)
6-35
DTX Series CableAnalyzer
Technical Reference Handbook
Setting the Reference in Far End Source Mode
1
Turn on the tester and smart remote and let them sit
for 5 minutes. Allow additional time if the fiber
modules have been stored above or below ambient
temperature. For other sources, warm up according
to the manufacturer’s recommendations.
2
Turn the rotary switch to SETUP; then select Fiber.
3
Select Remote End Setup; then select Far End Source.
4
Turn the rotary switch to SPECIAL FUNCTIONS; then
select Set Reference. If both a fiber module and a
twisted pair or coaxial adapter are attached, select
Fiber Module next.
5
Clean the connectors on the tester, source, and
reference test cords. Connect the tester and source
as shown on the tester.
Notes
The Set Reference screen shows reference
connections for the selected test method. Figure
6-17 shows connections for Method B.
The reference test cords in the tester’s diagrams
are numbered. If you want to meet TSB-140
reporting requirements, you can enter lengths
for each reference test cord number after
setting the reference.
7
Hold down the button on the smart remote’s fiber
module for 3 seconds to turn on the output port at
850 nm (DTX-MFM2/GFM2) or 1310 nm (DTX-SFM2).
Press again to switch to 1300 nm (DTX-MFM2),
1310 nm (DTX-GFM2), or 1550 nm (DTX-SFM2).
The LED is red for the shorter wavelength and green
for the longer wavelength.
For other sources, verify the output is set to the
correct wavelength and is in continuous-wave mode.
9
Press P, highlight the appropriate wavelength;
then press P again.
The View Reference screen shows the reference
values and the date and time the reference was set.
10 Press K OK.
The View Connections screen shows the test
connections for the selected test method.
6-36
Certifying Fiber Optic Cabling
Autotest in Far End Source Mode
11 To enter reference test cord lengths to meet TSB-140
reporting requirements, press J Patch Lengths.
On the Patch Lengths screen, enter the lengths of
the reference test cords.
6
WCaution
Do not disconnect the reference test cord from
the smart remote’s output after setting the
reference. If you do, you must set the reference
again to ensure valid measurements.
Press N when you are done.
amd149b.eps
Figure 6-17. Far End Source Mode Reference Connections (Method B)
6-37
DTX Series CableAnalyzer
Technical Reference Handbook
fiber module for 3 seconds. This turns on the output
port at 850 nm (DTX-MFM2/GFM2) or 1310 nm
(DTX-SFM2). Press again to switch to 1300 nm
(DTX-MFM2), 1310 nm (DTX-GFM2), or 1550 nm
(DTX-SFM2).
Running the Autotest in Far End Source Mode
WCaution
If the reference test cord has been disconnected
from the smart remote’s output since the
reference was set, you must set the reference
again to ensure valid measurements.
1
2
Turn on the tester and smart remote and let them sit
for 5 minutes. Allow additional time if the fiber
modules have been stored above or below ambient
temperature. For other sources, warm up according
to the manufacturer’s recommendations.
Verify that the settings described in Table 6-2 are
appropriate. Clean the connectors on the cabling to
be tested.
3
Connect the tester to the cabling as shown in Figure
6-18.
4
Verify the source is set to the correct wavelength.
To set the wavelength on a DTX module used as a
source, hold down the button on the smart remote’s
6-38
The LED is red for the shorter wavelength and green
for the longer wavelength.
For other sources, verify the output is set to the
correct wavelength and is in continuous-wave mode.
5
Turn the rotary switch to Autotest. Verify that the
media type is set to Fiber. Press J Change Media
to change it if necessary.
6
Press P, highlight the appropriate wavelength;
then press P again.
7
To save the results, press N, select or create a fiber
ID; then press Nagain.
Certifying Fiber Optic Cabling
Autotest in Far End Source Mode
6
amd150f.eps
Figure 6-18. Far End Source Mode Test Connections (Method B)
6-39
DTX Series CableAnalyzer
Technical Reference Handbook
Far End Source Mode Autotest Results
Figure 6-19 describes the Summary screen loss results
screen for an Autotest in Far End Source mode.
The Summary screen appears when the test is finished.
To see more detailed results, use D to highlight a
measurement; then press H.
3
1
2
4
7
5
6
8
amd28f.eps
Figure 6-19. Far End Source Mode Summary and Results Screens
6-40
Certifying Fiber Optic Cabling
Autotest in Far End Source Mode
A Overall results for the fiber:
E The maximum loss allowed by the selected test limit.
B Loss (Remote -> Main): Overall loss on the fiber
F The difference between the limit and the measured loss.
connected between the tester’s output and
input ports. E is PASS, F is FAIL.
C The overall result for the loss measurement.
D The measured loss for the fiber.
6
Margin is negative if the loss exceeded the limit.
G Meter for the loss measurement. Values in the red zone exceed
the selected test limit.
H Press L View Ref. to view the reference information.
Note
Note
If loss is negative, set the reference again and
retest the cabling. See Chapter 8 for more
information on negative loss.
In Far End Source mode, the results do not show a PASS/FAIL
result, limit, or margin if the selected test limit calculates loss
based on fiber length. An example of such a limit is the TIA568B Fiber Backbone limit. The tester does not measure
length in Far End Source mode.
Figure 6-19. Far End Source Summary and Loss Result Screens (cont.)
6-41
DTX Series CableAnalyzer
Technical Reference Handbook
Bi-Directional Testing
The Bi-Directional setting lets you test cabling in both
directions and save the bi-directional test results in Smart
Remote and Loopback modes.
To run a bi-directional test:
1
Turn the rotary switch to SETUP; then select Fiber.
2
Select Bi-Directional; then select Yes.
3
Run an Autotest test on the cabling, as described in
the previous sections for Smart Remote mode and
Loopback mode.
4
Halfway through the test, the tester prompts you to
swap the fibers at each end of the cabling.
WCaution
Swap the connections at the patch panel, not at
the tester's ports. Disconnecting the reference
test cord from the tester’s output port
invalidates the reference.
5
When the test is complete, press N to save the
results. Select or create a fiber ID for the fiber; then
press N again.
6-42
In Smart Remote mode, you save two results, one for
each fiber. See the next section.
Bi-Directional Results for Smart Remote Mode
Unsaved tests show the results for both fibers, as shown
at the left of Figure 6-20. Input Fiber and Output Fiber
refer to the fibers connected to the main tester’s input
and output ports at the end of the test.
On the results screen for loss and length measurements
for each fiber, press J Other Dir. to see results for the
other direction.
Saved tests for Smart Remote mode are stored in two
records, one for each fiber, as shown at the right of
Figure 6-20. Each record contains bi-directional results for
one fiber.
Bi-Directional Results for Loopback Mode
In the results for Loopback mode, Output to Input refers
to the direction from the tester’s output port to its input
port. Input to Output refers to the direction from the
tester’s input port to its output port. Both results are
stored in one record.
Certifying Fiber Optic Cabling
Bi-Directional Testing
Unsaved results show both the
input and output fibers
First saved result is
the input fiber
6
Second saved result is
the output fiber
amd127f.eps
Figure 6-20. Unsaved and Saved Bi-Directional Results for Smart Remote Mode
6-43
DTX Series CableAnalyzer
Technical Reference Handbook
Finding Connections with FindFiber
The FindFiber function helps you trace connections at
patch panels and quickly check fiber continuity.
Note
The FindFiber function is not available in Far End
Source mode.
6-44
Using FindFiber in Smart Remote Mode
Use the FindFiber function in Smart Remote mode to help
you determine which fibers go to which connectors at a
patch panel.
Figure 6-21 shows the equipment needed for using
FindFiber in Smart Remote mode.
Certifying Fiber Optic Cabling
Finding Connections with FindFiber
6
Wipe
2
SC
1
SC
4
3
amd53f.eps
A Tester and smart remote with fiber modules and
connector adapters installed. Match connector
adapters to the connectors in the link.
B Two ac adapters with line cords (optional)
C Reference test cords. Match the fiber to be tested. One
end of each must have an SC connector. For the other
connectors, match the connectors in the link.
D Fiber cleaning supplies
Figure 6-21. Equipment for Using FindFiber in Smart Remote Mode
6-45
DTX Series CableAnalyzer
Technical Reference Handbook
To use the FindFiber function in Smart Remote mode:
1
Turn the rotary switch to SETUP; then select Fiber.
2
Select Remote End Setup; then select Smart Remote.
3
Clean all connectors; then make the connections
shown in Figure 6-23.
4
Turn the rotary switch to MONITOR; then select
FindFiber.
amd103f.eps
The main tester’s INPUT fiber path is
not complete.
If the main tester's OUTPUT fiber is
connected to the remote's INPUT port,
the remote's TEST LED blinks.
5
Try various connections to the patch panel with the
main tester’s INPUT fiber until the input fiber’s status
shows Connected.
6
Then try various connections with the main tester’s
OUTPUT fiber until the output fiber’s status shows
Connected.
Figure 6-22 shows the main tester results for Smart
Remote mode.
amd105f.eps
amd104f.eps
The main tester’s INPUT fiber path is
complete. The main tester’s OUTPUT
fiber path is not complete.
Both fiber paths are complete.
On the remote, the TEST and PASS LEDs
blink alternately.
Figure 6-22. Main Tester Results for FindFiber Test (Smart Remote Mode)
6-46
Certifying Fiber Optic Cabling
Finding Connections with FindFiber
6
Connect the
INPUT fiber first
PASS
TEST
FAIL
TALK
TONE
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
TALK
amd54f.eps
Figure 6-23. Using FindFiber in Smart Remote Mode
6-47
DTX Series CableAnalyzer
Technical Reference Handbook
Using FindFiber in Loopback Mode
3
Use FindFiber in Loopback mode to quickly check the
continuity of patch cords and fiber spools. Figure 6-24
shows the equipment needed for using FindFiber in
Loopback mode.
Clean all connectors; then connect the tester's
OUTPUT fiber to one end of the fiber path, as shown
in Figure 6-25.
4
Turn the rotary switch to MONITOR; then select
FindFiber.
1
Turn the rotary switch to SETUP; then select Fiber.
5
2
Select Remote End Setup; then select Loopback.
Try various connections with the INPUT fiber. The
status shows Loopback for both fibers when the
path is complete.
W ipe
SC
3
4
2
1
5
amd55f.eps
A Tester with fiber module and connector adapter
installed. Match the connectors on the reference test
cord (C) or use an SC adapter if the fiber under test
has SC connectors. See Figure 6-25.
B AC adapters with line cord (optional)
C Reference test cord (optional for checking a fiber with
SC connectors)
D Two adapters of the appropriate type (optional for
checking a fiber with SC connectors)
E Fiber cleaning supplies
Figure 6-24. Equipment for Using FindFiber in Loopback Mode
6-48
Certifying Fiber Optic Cabling
Finding Connections with FindFiber
6
amd56f.eps
Figure 6-25. Using FindFiber in Loopback Mode
6-49
DTX Series CableAnalyzer
Technical Reference Handbook
Using the Power Meter
The power meter lets you measure the optical power
produced by a source such as an optical network interface
card or optical test equipment.
2
D
The tester offers two versions of the power meter
function:
•
•
SINGLE TEST mode: Measures power in the current
remote end configuration (Smart Remote, Loopback,
or Far End Source mode). Takes one power
measurement at 850 nm and 1300 nm (DTX-MFM2),
850 nm and 1310 nm (DTX-GFM2), or 1310 nm and
1550 nm (DTX-SFM2). You can save the power
measurement in this mode.
MONITOR mode: Monitors power continuously at the
input port at 850 nm, 1300 nm, 1310 nm, or
1550 nm. This measurement cannot be saved.
Wipe
C
A
5
amd57f.eps
A Tester with fiber module and connector adapter
installed. Match the connector adapter to the
connector in the link or on the source. See Figure
6-27.
B Memory card (optional for SINGLE TEST mode)
C AC adapter with line cord (optional)
The power meter functions do not compare the power
measurement to a limit and do not produce PASS/FAIL
results.
D One patch cord. Match the fiber and connectors in
Figure 6-26 shows the equipment required for using the
power meter in MONITOR mode.
E Fiber cleaning supplies
the link or the connector on the source. See Figure
6-27.
Figure 6-26. Equipment for Using the Power Meter in
MONITOR Mode
6-50
Certifying Fiber Optic Cabling
Using the Power Meter
To use the power meter in MONITOR mode:
6
3
Turn on the source.
Note
4
If you need to save the power reading, use the
power meter function in the SINGLE TEST mode.
Turn the rotary switch to MONITOR; then select
Power Meter.
5
Press P.
6
Select the appropriate wavelength; then press P.
The power meter in MONITOR mode runs
continuously until you press I.
1
Clean the tester’s input port, the reference test cord
connectors, and the source connector.
2
Use the reference test cord to connect the source to
the tester's input port, as shown in Figure 6-27.
Figure 6-28 describes the power meter screens for SINGLE
TEST and MONITOR modes.
amd126f.eps
Figure 6-27. Connections for Monitoring Optical Power (MONITOR mode)
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To use the power meter in SINGLE TEST mode:
Note
Refer to previous sections on the Autotest in
Smart Remote, Loopback, or Far End Source
modes for details on selecting these modes and
making test connections.
1
In SETUP, set the tester to Smart Remote, Loopback,
or Far End Source mode.
2
Connect the tester to the cabling for Smart Remote,
Loopback, or Far End Source mode.
3
Clean the tester’s input port, the reference test cord
connectors, and the source connector(s).
4
Use the reference test cord(s) to connect to the
cabling.
6-52
5
Turn on the source.
6
Turn the rotary switch to SINGLE TEST, select Power;
then press P.
7
To save the results, press N, select or create a fiber
ID; then press Nagain.
In Smart Remote mode you will save two power
meter results, one for each fiber. In the saved results,
Input Fiber and Output Fiber refer to the fibers
connected to the main tester’s input and output
ports at the end of the test.
Figure 6-28 describes the power meter screens for SINGLE
TEST and MONITOR modes.
Certifying Fiber Optic Cabling
Using the Power Meter
6
2
1
1
2
2
3
Unsaved results for SINGLE TEST mode
with Smart Remote configuration
(input fiber shown)
3
Results for MONITOR mode
amd107f.eps
amd106f.eps
A Meters showing the power readings taken at each
wavelength. The tester takes one measurement for
each wavelength.
B Power readings in decibels (dB) or microwatts (µw).
C To switch between decibels and microwatts, press J.
A Meter showing the power reading. The reading updates
continuously until you press I.
B To switch between decibels and microwatts, press J.
C To switch wavelengths, press L Change λ .
Figure 6-28. Power Meter Screens
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DTX Series CableAnalyzer
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Running Single Tests
The tester’s SINGLE TEST mode lets you run individual
tests for isolating cabling failures and quickly testing
repairs.
In the SINGLE TEST mode, you can run and save the
following tests individually:
•
Loss
•
Length (includes propagation delay)
•
Power meter measurement
6-54
Using the Remote Tester with an
OptiFiber Tester
You can use a DTX Series smart remote with a DTX-MFM2
or DTX-SFM2 fiber module as the remote for a Fluke
Networks OptiFiber Certifying OTDR. The DTX remote
takes the place of a second OptiFiber tester for measuring
loss and length with the OptiFiber loss/length option in
Smart Remote mode. You can buy a smart remote
separately for this purpose. See the Fluke Networks
website or contact Fluke Networks for details.
Chapter 7
Locating Fibers and Faults with the Visual Fault Locator
Visual Fault Locator Applications
The fiber test module includes a visual fault locator that
helps you do the following:
•
Quickly check fiber continuity. Trace fibers to
determine the polarity of duplex connections and
identify connections between patch panels.
•
Locate breaks and bad splices. These faults scatter
the locator’s light, causing a red glow in the affected
area.
•
Reveal high-loss bends. If the locator’s light is visible
around a bend in a fiber, the bend is too sharp.
•
Reveal problems in connectors. A damaged fiber
inside a connector causes a red glow in the
connector.
•
Optimize mechanical splices and pre-polished
connectors: Before sealing the splice or connector,
adjust the fiber alignment for minimal glow where
the fibers meet. (Follow the manufacturer’s assembly
instructions for splices and connectors.)
7-1
DTX Series CableAnalyzer
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Figure 7-1 shows the equipment needed for using the
visual fault locator.
Using the Visual Fault Locator
The visual fault locator port accepts connectors with
2.5 mm ferrules (SC, ST, or FC). To connect to other ferrule
sizes, use a patch cord with the appropriate connector at
one end and a SC, ST, or FC connector at the tester end.
To use the visual fault locator:
1
Clean the connectors on the patch cord, if used, and
the fiber to be tested.
2
Connect the fiber directly to the tester’s VFL port or
connect using the patch cord.
3
Turn on the visual fault locator by pressing the
button near the VFL connector, as shown in Figure
7-2. Press again to switch to flashing mode. Press
again to turn off the locator.
4
Look for the red light to locate fibers or faults, as
shown in Figure 7-2.
3
Wipe
1
2
4
amd61f.eps
A Tester or smart remote with fiber module
B AC adapter with line cord (optional)
C One patch cord. Match fiber and connectors to be
tested; SC, ST, or FC at tester end (optional)
D Fiber cleaning supplies
Figure 7-1. Equipment for Using the Visual Fault
Locator
7-2
View the VFL’s light indirectly by holding a white card
or paper in front of the fiber connector emitting the
light.
Note
The locator’s light may not be visible through
dark-colored fiber jackets.
Locating Fibers and Faults with the Visual Fault Locator
Using the Visual Fault Locator
7
amd23f.eps
Figure 7-2. Using the Visual Fault Locator
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7-4
Chapter 8
Diagnosing Fiber Cabling Faults
Common Causes of Failures
Most problems in fiber links are caused by dirty,
scratched, or damaged connectors, as shown in Table 8-1.
The table shows results of a survey of 89 contractors and
private network owners. The results show what
percentage of each group commonly found the faults
listed.
Table 8-1. Causes of Failures in Fiber Links
Fault
Network Owners
Contractors
Dirty end-faces
80 %
98 %
Poor polishing
72 %
88 %
Broken connectors
40 %
86 %
Mislabeling
8%
86 %
Shattered end-faces
34 %
82 %
Bad splices
36 %
74 %
Excessive bends
6%
66 %
8-1
DTX Series Cable Analyzer
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Diagnosing Failures
Table 8-2 describes some typical causes of fiber test
failures.
Table 8-2. Diagnosing Fiber Test Failures
Loss measurement gives FAIL result
•
There is one or more dirty, damaged, misaligned, or unseated connections in the cabling. Check all connections and
clean all fiber endfaces, then retest. The tester’s VFL can reveal damaged connectors and other faults. See Chapter 7
for details. An OTDR, such as the Fluke Networks OF-500 OptiFiber Certifying OTDR, can help you locate faults not
revealed with the VFL.
•
There is a kink or sharp bend in a reference test cord or the fiber under test. Use the VFL to reveal these faults.
•
A reference test cord is broken.
•
The number of adapters or splices on the Fiber Setup menu is too low (for standards that use a calculated loss value).
•
The wrong fiber type is selected on the Fiber Setup menu.
•
The reference is incorrect. Set the reference again using the same reference test cords to be used for testing.
•
For multimode fiber, the wrong mandrel size was used for testing. Smaller mandrels create tighter bends in the fiber,
resulting in more loss.
•
A reference test cord or fiber segment has the wrong core size. An OTDR is useful for locating mismatched fibers.
•
The cabling has a bad fusion or mechanical splice or a sharp bend. Use the visual fault locator to reveal these faults.
•
The fibers are connected to the wrong ports on the tester, or are swapped at one end of the cabling.
-continued-
8-2
Diagnosing Fiber Cabling Faults
Diagnosing Failures
8
Table 8-2. Diagnosing Fiber Test Failures (cont.)
Loss is negative.
•
The fiber ends were dirty during referencing.
•
The connections to the tester were disturbed after referencing.
•
There was a kink in a reference reference test cord during referencing.
•
The connectors were not properly aligned during referencing.
•
The testers were much colder during referencing than during testing.
•
Some other problem caused a bad reference value.
If loss is negative, set the reference again and retest the cabling. See Chapter 6.
A known length of cable measures too long or too short.
•
The wrong fiber type is selected on the Fiber Setup menu
•
The index of refraction needs adjustment. Change n on the Fiber Setup menu
-continued-
8-3
DTX Series Cable Analyzer
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Table 8-2. Diagnosing Fiber Test Failures (cont.)
Power meter measurement is too low
•
Fiber endface is dirty or damaged.
•
Reference test cord not connected to tester’s INPUT port, or a connection is loose.
•
Wavelength selected on tester doesn’t match source wavelength.
•
Source set to modulated output.
•
Reference test cord or adapter is the wrong type (SM or MM) or reference test cord has the wrong core size.
•
Cabling is cracked or broken.
Power meter measurement is too high
Tester is connected to an active CATV fiber.
8-4
Chapter 9
Verifying Network Service
Overview of Features
Notes
The optional DTX-NSM Network Service Module lets you
do the following on twisted pair or fiber links:
Running network tests on a fiber link requires
an optional SFP module.
•
The DTX-NSM module does not support the Talk
function.
Verify connection to the network, including
connection speed, duplex configuration, link wiring,
and PoE service (wiring and PoE functions for twisted
pair only)
Figure 9-1 describes the network module's features.
Software Requirements
•
Ping IP addresses
•
Monitor network traffic for utilization, collisions,
errors, and broadcast packets
The following software supports the DTX-NSM module.
Software upgrades are available on the Fluke Networks
website.
•
Blink a port's activity LED
•
DTX software: version 1.3 or later
•
Use Fluke Networks LinkRunner Cable ID locators
(optional) to identify link connections at a patch
panel (twisted pair only)
•
LinkWare software: version 2.5 or later
9-1
DTX Series CableAnalyzer
Technical Reference Handbook
Installing and Removing the Network
Module and Optional SFP Module
See Figure 9-2.
Install the network module only in the main tester.
Install an optional SFP (small form pluggable) module to
test fiber links.
amd38f.eps
A The link LED is green when the tester is receiving link
pulses from the network.
B 8-pin module jack (RJ45) for connecting to twisted
pair networks.
C Port for inserting an optional small form pluggable
(SFP) optical module for testing fiber links.
Figure 9-1. Network Module Features
9-2
WCaution
Leave the module bay cover in place when a
module is not installed.
Put the dust cap on the SFP port when an optical
module is not installed. Put the dust cap on the
optical module when not connected to a fiber.
Verifying Network Service
Installing and Removing the Network Module and Optional SFP Module
9
amd39f.eps
Figure 9-2. Installing and Removing the Network and SFP Modules
9-3
DTX Series CableAnalyzer
Technical Reference Handbook
Verifying Network Connectivity
Network Connectivity Test Settings
The network connectivity test lets you verify that a
twisted pair or fiber link is connected to a network. The
test provides details about the link's configuration and
includes a ping function for verifying connectivity to
stations on the network.
The tester needs various addresses to test a network
connection, as described in Table 9-1. To access these
settings, turn the rotary switch to SETUP; then select
Network Settings.
Table 9-1. Network Connectivity Test Settings
Setting
SETUP >
Network Settings >
IP Address
Assignment
Description
Select DHCP (Dynamic Host Configuration Protocol) to have the network's server assign the tester's
address, gateway address, and DHCP and DNS (Domain Name System) server addresses. Most
networks support DHCP.
Select Static to enter the tester's address, subnet mask, gateway address, and DNS server address
manually. Enter the addresses on the second tab that appears after you select Static. These
addresses are typically available from a network installer, administrator, technician, or from
network documentation.
WCaution
In Static mode, verify that the DTX Address is not used by another network device. Using a
duplicate address can cause the other device to malfunction.
SETUP > Network
Settings > Target
Addresses
9-4
Optional. Enter one or more addresses for ping tests. You may enter addresses manually, or
download them from LinkWare software. See "Entering Ping Addresses" on page 9-5 for details.
Verifying Network Service
Verifying Network Connectivity
9
Entering Ping Addresses
To enter or edit ping addresses on the tester:
You can use LinkWare software to create and download
ping addresses to the tester, or you can enter and edit
addresses directly on the tester.
1
Turn the rotary switch to SETUP; then select
Network Settings.
2
To use LinkWare to enter ping addresses:
Select Target Addresses; then do one of the
following:
1
Install the latest version of LinkWare software on
your PC.
•
2
Select Utilities > DTX Utilities > Ping Target List on
the LinkWare menu.
To add an address, press J Create. Enter a
device Name and IP Address. Press N when you
are finished.
•
To edit an address, highlight the address name;
then press L Edit. Select Name or IP Address
for editing. Press N when you are finished.
•
To delete an address, highlight the address
name, press K Delete; then press L Yes.
3
Create an address list; then download it to the
tester. See the LinkWare online help for details.
9-5
DTX Series CableAnalyzer
Technical Reference Handbook
Running the Connectivity Test
Saving Connectivity Results
To test for network connectivity:
You can save the network connectivity results in a
separate record or with an existing cable test record.
Note
The network connectivity test will not run on
links with ground loops, analog telephone
voltages, ISDN voltages, or other voltages
(except PoE voltage). The tester warns you if it
detects these conditions.
1
Select DHCP or Static mode and enter ping addresses
in Setup, as described on pages 9-4 and 9-5.
2
Connect to the network as shown in Figure 9-3.
3
Turn the rotary switch to MONITOR; then select
Network Connectivity.
To save the results in a separate record:
1
Run the network connectivity test, then press N.
2
Select Save Standalone Result. Create an ID; then
press N again.
To save the results with an existing cable test record:
Note
4
9-6
Press P. Figure 9-4 describes the network
connectivity results.
You can add network connectivity results only
to results for cables of the same type.
1
Run the network connectivity test, then press N.
2
Select Add to Cable Test Result.
3
Highlight the record you want to save the results
with; then press K Add.
Verifying Network Service
Verifying Network Connectivity
9
amd17f.eps
Figure 9-3. Network Test Connections
9-7
DTX Series CableAnalyzer
Technical Reference Handbook
A Speeds supported by the switch or hub: 10 Mbit, 100 Mbit, 1000 Mbit.
1
The current speed is green. Arrows show the connection's duplex
configuration:
2
4
3
5
B PoE shows if the device appears to support Power over Ethernet. The
tester requests power from suspected PoE devices. PoE is red if the device
did not supply power during the test.
6
Fiber shows for a fiber link.
7
C Crossover indicator (twisted pair only):
8
•
Green: either the cable is straight-through, or the cable is a crossover
and the hub or switch crossed pairs 12-36 (MDI on the Negotiation
Details screen).
•
Orange: the tester compensated for a crossover cable by crossing pairs
12-36 (MDI-X on the Negotiation Details screen).
9
amd06.eps
-continuedFigure 9-4. Network Connectivity Results Screen (DHCP example for twisted pair)
9-8
Verifying Network Service
Verifying Network Connectivity
D Select Negotiation Details to see details. See Figure 9-5.
On the Negotiation Details screen, Yes for Pin Reversal
indicates a reversed pair on the link, (such as wires 1 and 2
crossed). Run a wire map test on the link to check the
wiring.
E Select DTX Address to see details, including the subnet
mask.
F Network addresses used during the test:
•
9
The checkmarks and Xs indicate how many replies the
tester received to its three pings:
: Green: Ping replies received for all requests.
: Orange: At least one ping reply received.
: No ping replies received, indicating a problem
with the connection.
G <Target Address name>: appears if you use L
Ping to ping a device. See "Pinging Network Devices"
on page 9-11.
Gateway: Address of the network device that joins
networks using different protocols or passes data
between networks.
H See "Monitoring Network Traffic" on page 9-12 and
•
DHCP Server: Dynamic Host Configuration Protocol
server address. Shown only in DHCP mode.
I Press L Ping to ping devices. See "Entering Ping
•
DNS Server: Domain Name System server address.
"Blinking a Port Light" on page 9-14.
Addresses" on page 9-11 and "Pinging Network
Devices" on page 9-11.
In DHCP mode, the addresses above show as 0.0.0.0 if
the DHCP server does not provide them.
To see ping results for the above devices, highlight a
device; then press H. See Figure 9-6.
Figure 9-4. Network Connectivity Results Screen (DHCP example for twisted pair) (cont.)
9-9
DTX Series CableAnalyzer
Technical Reference Handbook
E The speed negotiated for the connection.
F The connection's duplex configuration:
•
Half Duplex: data travels in one direction at a time.
•
Full Duplex: data travels in both directions at the same time (as with
Gigabit Ethernet).
C Twisted pair links only:
5
•
MDI-X (medium-dependent interface crossover): The tester
compensated for a crossover cable by crossing pairs 12-36.
•
MDI: The tester did not compensate for a crossover cable. Either the
cable is straight-through, or the cable is a crossover and the hub or
switch crossed pairs 12-36.
D Twisted pair links only. Yes indicates a reversed pair on the link, (such as
amd31.eps
wires 1 and 2 crossed). Run a wire map test on the link to check the
wiring.
E The speeds supported by the hub or switch.
Figure 9-5. Negotiation Details (twisted pair results shown)
9-10
Verifying Network Service
Pinging Network Devices
Pinging Network Devices
5
The ping test verifies connectivity to devices on the
network.
To ping a network device:
9
Do one of the following:
•
To ping one device, highlight the device; then
press P.
•
To ping all devices in the list, press JPing All.
The overall ping result appears on the Network
Connectivity screen. A scroll bar appears if you
pinged multiple devices
1
Enter ping addresses in Setup. See page 9-5.
2
Connect to the network as shown in Figure 9-3.
3
Turn the rotary switch to MONITOR, select Network
Connectivity; then press P.
6
To see ping details (Figure 9-6), highlight a device;
then press H.
4
When the network connectivity test is complete,
press L Ping.
7
To save the ping results, press N. Ping results are
saved as part of the connectivity results. You can
save the network connectivity results in a separate
record or with an existing cable test record. See page
9-6.
9-11
DTX Series CableAnalyzer
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1
A The name and IP address of the device that was pinged.
B Number of pings sent and received.
2
C The minimum, average, and maximum times taken for the ping requests
3
to travel to the target address and back to the tester (Round Trip Return
Time).
RTT Std Dev. is the standard deviation of the RTTs. This tells, on average,
how far RTT values are from the average RTT value.
amd16.eps
Figure 9-6. Ping Results Screen
Monitoring Network Traffic
To monitor network traffic:
The traffic monitor lets you identify active cables and
check a network's basic health.
1
Turn on the tester; then connect to the network as
shown in Figure 9-3 on page 9-7.
2
Turn the rotary switch to MONITOR; then run the
Network Connectivity test.
3
When the test is complete, press J Traffic. Figure
9-7 describes the traffic monitor screen.
Note
Traffic monitor results cannot be saved.
9-12
Verifying Network Service
Monitoring Network Traffic
9
A The time the test has been running.
B Traffic characteristics for the last 1 second, and the average and peak values
since the test began:
1
2
3
4
5
•
Utilization: Percentage of the network’s bandwidth used. This indicates the
traffic density on the network. Utilization averaging over 40 % may indicate
a problem.
•
Collisions: The percentage of collision frames as compared to the total
number of frames detected in the last 1 second. Collisions occur when two
devices attempt to transmit at the same time. A collision rate averaging over
5 % may indicate a problem. A full-duplex link should show 0 % collisions.
•
Errors: Includes short frames, bad FCS (frame check sequence), late collisions,
and jabber. An error rate above 0 % indicates a problem.
•
Broadcasts: Percentage of frames addressed to all devices. Acceptable
broadcast rates vary among networks.
C Toggles a sound that indicates the utilization level.
D Stops the test.
amd08.eps
E Resets all statistics to zero.
Figure 9-7. Traffic Monitor Screen
9-13
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Technical Reference Handbook
Blinking a Port Light
Identifying Links (twisted pair only)
The Port Blink function helps you quickly locate a link's
port at a switch or hub. This function generates a link
pulse on pairs 12 and 36 to blink the port's activity LED.
The ID Locator function helps you quickly identify link
connections at a patch panel. This function requires one
or more optional Fluke Networks LinkRunner Cable ID
locators.
To blink a port light:
1
Connect to the network as shown in Figure 9-3 on
page 9-7.
2
Turn the rotary switch to MONITOR, select Network
Connectivity; then press P.
3
When the test is complete, press K Port Blink. A
square on the hub/switch icon on the Network
Connectivity screen blinks when the port blink
function is active.
4
Look for a blinking activity LED on the hub or switch.
Note
ID locator results cannot be saved.
To identify a link:
1
Connect the tester and ID locator(s) as shown in
Figure 9-8.
2
Turn the rotary switch to MONITOR, select ID
Locator; then press P.
3
Connect the tester to different jacks, pressing P to
rescan each time, until Found Cable ID and the
identifier's number appears.
Note
Wiring faults may cause the tester to misidentify
the ID locator's number, or prevent the tester
from detecting the locator.
9-14
Verifying Network Service
Identifying Links (twisted pair only)
9
amd20f.eps
Figure 9-8. Identifying Links with Optional LinkRunner Cable ID Locators
9-15
DTX Series CableAnalyzer
Technical Reference Handbook
Diagnosing Low-Level Network
Problems
also indicate problems at higher levels. Higher-level
problems are usually addressed by a network technician
or administrator using a network tester or analyzer.
The DTX-NSM module helps you troubleshoot links and
diagnose network problems up through layer 3 of the
OSI (Open Systems Interconnect) 7-layer model. It can
Table 9-2 lists common causes of symptoms you can
detect with the DTX-NSM module.
Table 9-2. Diagnosing Low-Level Network Problems
No ping response, limited responses, or ping times seem high
Note
To evaluate ping times, you should compare current results with results taken when the network was operating
normally.
•
Wiring fault on the link.
•
Device is turned off.
•
For static IP address assignment, incorrect address or subnet mask in Setup.
•
A network fault, condition (such as network congestion), or security setting is preventing the device from answering.
•
Since ping requests are low-priority traffic, devices may not respond to all requests.
-continued-
9-16
Verifying Network Service
Diagnosing Low-Level Network Problems
9
Table 9-2. Diagnosing Low-Level Network Problems (cont.)
Wire pairs 12 and 36 are reversed
•
Mix of 568A and 568B wiring standards.
•
Crossover cables used where not needed. They are typically used only between two switches or hubs.
•
Tester is connected to a NIC (network interface card) with a straight-through cable. The reversed result is normal in
this situation., since a NIC transmits on pair 12 while a switch or hub transmits on 36.
Note
The utilization, collision, and error percentages given below are only guidelines. Acceptable percentages can vary
among networks.
Utilization averaging above 40 %
Too many stations on the network.
Utilization spikes above 40 %
Broadcast storms.
-continued-
9-17
DTX Series CableAnalyzer
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Table 9-2. Diagnosing Low-Level Network Problems (cont.)
Collision rate averaging above 5 %
•
Duplex mismatch on the network.
•
Too many stations within the collision domain.
•
Faulty hub, switch, NIC, or other device.
•
Cabling is too long.
Errors detected (any rate above 0 %)
•
Cabling is too long.
•
Faulty cabling (such as intermittent wiring faults, cabling of the wrong category, or poor quality cabling)
•
Faulty or marginal network interface card (NIC).
•
Faulty or misconfigured hardware or software.
•
Electrical noise source near cabling. Use the impulse noise test to check for noise. See Chapter 3.
•
Duplex mismatch on the network.
•
Bad grounding for network components.
Broadcast rate too high (acceptable rates vary among networks)
Faulty or misconfigured hardware or software.
9-18
Chapter 10
Custom Test Settings
You can customize the following test settings:
Creating a Custom Twisted Pair Cable
Type
•
Twisted pair cable types
•
Fiber optic cable types
•
Twisted pair test limits
You can create up to nine custom twisted pair cable
types. A custom twisted pair cable type includes the
following settings:
•
Fiber optic test limits
•
Custom cable name
•
Outlet configurations for twisted pair cable
•
Baseline cable type for default values
•
NVP for twisted pair or coaxial cable
•
Nominal velocity of propagation (NVP)
10-1
DTX Series CableAnalyzer
Technical Reference Handbook
To create a custom twisted pair cable type:
1
Turn the rotary switch to SETUP; then select Twisted
Pair.
2
Select Cable Type; then select Custom.
3
Press J Create.
4
On the Custom screen, select Name; then use the text
editing screen to enter a name for your custom cable
type. Press N when you are done.
5
On the Custom screen, select Use Default Values
From, select a cable group; then select a cable type as
a baseline for your custom cable type.
6
To change the NVP for your custom cable, select NVP
on the Custom screen. You may set the NVP to a
specified value, or determine the actual NVP of a
sample of cable. See "Changing the NVP" on page
10-8.
7
From the Custom screen, press N when you are
done creating the cable type.
The tester saves the custom cable type in the Custom list,
with asterisks (*) before and after the name.
10-2
Custom Test Settings
Creating a Custom Fiber Type
10
Creating a Custom Fiber Type
You can create up to nine custom fiber types. A custom
fiber type includes the following settings:
•
Custom fiber name
•
Baseline limit for default settings
•
Index of refraction (n)
4
On the Custom screen, select Name; then use the text
editing screen to enter a name for your custom fiber
type. Press N when you are done.
5
On the Custom screen, select Use Default Values
From, select a fiber group; then select a fiber type as
a baseline for your custom fiber type.
6
To change the index of refraction (n) for your custom
fiber, select n for a wavelength; then use the editing
screen to enter a value for n. Press N when you are
done.
7
From the Custom screen, press N when you are
done creating the fiber type.
To create a custom fiber type:
1
Turn the rotary switch to SETUP; then select Fiber.
2
Select Fiber Type; then select Custom.
3
Press J Create.
The tester saves the custom fiber type in the Custom list,
with asterisks (*) before and after the name.
10-3
DTX Series CableAnalyzer
Technical Reference Handbook
Creating a Custom Twisted Pair Test
Limit
To create a custom twisted pair limit:
1
You can create up to nine custom twisted pair test limits.
A custom twisted pair test limit includes the following
settings:
Turn the rotary switch to SETUP; then select Twisted
Pair.
2
Select Test Limit, press J More; then select
Custom.
•
Custom limit name
3
Press J Create.
•
Baseline limit for default settings
4
•
Maximum length
•
Resistance test enabled or disabled
On the Custom screen, select Name; then use the text
editing screen to enter a name for your custom limit.
Press N when you are done.
•
Insertion loss test enabled or disabled
5
•
NEXT test enabled or disabled
On the Custom screen, select Use Default Values
From, select a test limit group; then select a limit as a
baseline for your custom limit.
•
PSNEXT test enabled or disabled
6
•
ELFEXT test enabled or disabled
•
PSELFEXT test enabled or disabled
The Custom screen shows other settings on multiple
tabs for the twisted pair limit. Use AD and
H to select settings to change. Use BC to move
among the tabs.
•
ACR test enabled or disabled
•
PSACR test enabled or disabled
•
Return loss test enabled or disabled
See Chapter 3 for details on twisted pair test
parameters.
7
From the Custom screen, press N when you are
done creating the limit.
The tester saves the custom limit in the Custom list, with
asterisks (*) before and after the name.
10-4
Custom Test Settings
Creating a Custom Fiber Limit
Creating a Custom Fiber Limit
You can create up to nine custom fiber limits. A custom
fiber limit includes the following settings:
•
Custom limit name
•
Baseline limit for default values
•
Maximum fiber length
•
Maximum loss at the wavelengths required by the
baseline limit.
4
On the Custom screen, select Name; then use the text
editing screen to enter a name for your custom fiber
limit. Press N when you are done.
5
On the Custom screen, select Use Default Values
From, select a limit group; then select a fiber limit as a
baseline for your custom limit.
6
The Custom screen shows other settings on multiple
tabs for the fiber test limit. Use AD and
H to select settings to change. Use BC to move
among the tabs.
See Chapter 6 for details on fiber test parameters.
To create a custom fiber limit:
1
Turn the rotary switch to SETUP; then select Fiber.
2
Select Test Limit, press J More; then select
Custom.
3
Press J Create.
10
7
From the Custom screen, press N when you are
done creating the fiber type.
The tester saves the custom limit in the Custom list, with
asterisks (*) before and after the name.
10-5
DTX Series CableAnalyzer
Technical Reference Handbook
Creating a Custom Outlet
Configuration
4
On the Custom screen, select Name; then use the text
editing screen to enter a name for your custom
configuration. Press N when you are done.
You can create up to nine custom outlet configurations. A
custom outlet configuration includes the following
settings:
5
On the Custom screen, select Use Default Values
From; then select an outlet configuration as a
baseline for your custom configuration.
6
On the Custom screen use AD and H to
select wire pairs to enable or disable.
•
Custom outlet name
•
Baseline outlet configuration for default settings
•
Enable/disable setting for each wire pair
To create a custom outlet configuration:
1
Turn the rotary switch to SETUP; then select Twisted
Pair.
2
Select Outlet Configuration; then select Custom.
3
Press J Create.
10-6
If the baseline configuration has additional wire
pairs, use BC to move among the tabs.
7
From the Custom screen, press N when you are
done creating the outlet configuration.
The tester saves the custom configuration in the Custom
list, with asterisks (*) before and after the name.
Custom Test Settings
Editing Custom Settings
10
Editing Custom Settings
Deleting Custom Settings
The editing function lets you change values in existing
custom settings.
To delete a custom cable, fiber type, test limit, or outlet
configuration:
To edit an existing custom cable, fiber type, test limit, or
outlet configuration:
1
Turn the rotary switch to SETUP; then select Twisted
Pair or Fiber.
1
Turn the rotary switch to SETUP; then select Twisted
Pair or Fiber.
2
2
On the Twisted Pair or Fiber menu, select the item
that includes the custom settings you want to edit
(Cable Type , Fiber Type, Test Limit, Outlet
Configuration).
On the Twisted Pair or Fiber menu, select the item
that includes the custom settings you want to delete
(Cable Type , Fiber Type, Test Limit, or Outlet
Configuration).
3
If you selected Test Limit, press J More.
4
Select Custom.
5
Use AD to highlight a custom setting.
6
Press K Delete; then press L Yes.
3
If you selected Test Limit, press J More.
4
Select Custom.
5
Use AD to highlight a custom setting; then
press L Edit.
6
Make your changes on the Custom screen; then press
N.
10-7
DTX Series CableAnalyzer
Technical Reference Handbook
Changing the NVP
Setting the NVP to a Specified Value
The tester uses an NVP value (nominal velocity of
propagation) and the signal delay through cable to
calculate the length of twisted pair and coaxial cabling.
This procedure lets you set the NVP to a specified value,
such as the value specified by the manufacturer. The NVP
value applies to the selected cable type.
The default value defined by the selected cable type
represents the typical NVP for that cable type. These
values are usually accurate enough for certifying cable;
however, you can increase the accuracy of length
measurements by adjusting the NVP to a specified or
actual value.
To enter a specified NVP value:
Note
NVP values can vary among cable types, lots, and
manufacturers. In most cases, these differences
are minor and may be disregarded.
1
If you are in the middle of creating a custom cable
type, go to step 4.
2
Turn the rotary switch to SETUP.
3
Select Twisted Pair or Coax.
4
Do one of the following:
5
10-8
•
To change the NVP for the selected cable type,
select NVP on the Twisted Pair or Coax menu.
•
To change the NVP for a custom twisted pair
cable type, create a custom cable type or select
one for editing; then select NVP on the Custom
screen. See page 10-1 for details on creating
custom cable types.
Use AD to change the NVP value; then
press N.
Custom Test Settings
Changing the NVP
10
Determining a Cable's Actual NVP
6
You can determine a cable's actual NVP by adjusting the
measured length to match a known length of cable. The
NVP value applies to the selected cable type.
Connect a known length of twisted pair or coaxial
cable to the tester. The cable should be at least 30 m
(100 ft) long.
7
Press P.
To determine a cable's NVP:
8
Use AD to change the NVP until the
measured length matches the known length of the
cable; then press N.
1
If you are in the middle of creating a custom cable
type, and a twisted pair or coaxial adapter is already
attached to the tester, go to step 5.
2
Attach a twisted pair or coaxial adapter to the tester.
3
Turn the rotary switch to SETUP.
4
Select Twisted Pair or Coax.
5
Do one of the following:
•
To change the NVP for the selected cable type,
select NVP on the Twisted Pair or Coax menu.
•
To change the NVP for a custom twisted pair
cable type, create a custom cable type or select
one for editing; then select NVP on the Custom
screen. See page 10-1 for details on creating
custom cable types.
10-9
DTX Series CableAnalyzer
Technical Reference Handbook
Resetting the NVP to the Default Value
You can reset the NVP to the default value defined by the
selected cable type by re-selecting the cable type in
SETUP.
To reset the NVP to the default value:
1
Turn the rotary switch to SETUP; then select Twisted
Pair or Coax.
2
On the Twisted Pair or Coax menu, select Cable Type.
3
If you selected Twisted Pair, select the cable group
that contains the desired cable type.
4
Select a cable type on the Cable Type menu. The NVP
value on the Twisted Pair or Coax screen returns to
the value defined by the cable type.
10-10
Transferring Custom Settings
Between Testers
To transfer custom limits, cable types, outlet
configurations, and fiber types between testers, use the
Modify DTX Test Limits utility in LinkWare software. This
utility lets you upload custom settings from a tester to a
PC, then download the settings to other testers. See the
LinkWare online help for details.
Chapter 11
Memory Functions
Storage Locations and Capacities
All DTX Series testers can store up to 250 Cat 6 Autotest
results, including graphical data, in internal memory.
The maximum capacity of internal memory depends on
the space taken by the tester’s software.
The DTX-1800 and DTX-1200 can store up to 500 Cat 6
Autotest results, including graphical data, on a 16 MB
removable memory card.
The DTX-1800 and DTX-1200 testers can use
MultiMediaCard (MMC) or Secure Digital memory cards
(SD).
11-1
DTX-Series CableAnalyzer
Technical Reference Handbook
Checking the Memory Status
Or, press L Memory from the main Autotest screen.
To check the memory status, the rotary switch to SPECIAL
FUNCTIONS, use D to highlight Memory Status;
then press H.
Figure 11-1 describes the memory status screen.
A The memory status currently displayed.
1
is shown for
internal memory.
is shown for the memory card
(DTX-1800, DTX-1200)
2
DTX-1800/DTX-1200: Press A to switch between the
memory card and internal memory status.
3
B The bar graph shows the space used in the current memory
destination.
4
C The number of results saved in the location being displayed.
D The approximate number of results you can save in the
location being displayed. The exact number depends on the
selected test limit and other test settings, as well as the
length of the cables you test.
5
E DTX-1800/DTX-1200: Press A to switch between the
6
memory card and internal memory status.
amd108f.eps
F DTX-1800/DTX-1200: Press K to format the memory card,
if present.
Figure 11-1. Memory Status Screen Features
11-2
Memory Functions
Setting the Storage Location (DTX-1800, DTX-1200)
11
Setting the Storage Location (DTX1800, DTX-1200)
Working with Folders
To set the destination for saved results on a DTX-1800 or
DTX-1200 tester:
You can create folders for each job to organize your test
results. The tester saves test results in the folder you
select.
1
Turn the rotary switch to SETUP.
Creating a New Folder
2
Use D to highlight Instrument Settings; then
press H.
To create a new folder:
1
Turn the rotary switch to SETUP.
3
Use D to highlight Result Storage Location;
then press H.
2
Use D to highlight Instrument Settings; then
press H.
4
Use D to highlight Internal Memory or
Memory Card (if present); then press H.
3
DTX-1800, DTX1200: Verify that the Result Storage
Location shows the location where you want the
new folder. Change the location if necessary.
4
On the Instrument Settings screen, use D to
highlight Current Folder; then press H.
5
Press J Create Folder.
6
Use the softkeys, BCAD, and H to
enter a folder name. Press N when you are
finished.
Note
If you change the Result Storage Location, and
the selected Current Folder does not exist in the
new location, the tester creates a new folder
with the current folder’s name in the new
location.
11-3
DTX-Series CableAnalyzer
Technical Reference Handbook
Changing Folders
Deleting Folders
To change the current folder:
To delete a folder and all the results it contains:
1
Turn the rotary switch to SETUP.
1
Turn the rotary switch to SPECIAL FUNCTIONS.
2
Use D to highlight Instrument Settings; then
press H.
2
Use D to highlight View/Delete Results; then
press H.
3
DTX-1800, DTX1200: Verify that the Result Storage
Location shows the correct location. Change the
location if necessary.
3
If necessary, press J Change Folder to find the
folder you want to delete.
4
Press K Delete.
4
On the Instrument Settings screen, use D to
highlight Current Folder; then press H.
5
Use D to highlight Current Folder; then press
L Delete.
5
Use AD to highlight a folder name; then
press H.
Note
Changing folders from the View Results screen
in SPECIAL FUNCTIONS does not change the
current folder in SETUP.
11-4
Memory Functions
Viewing and Managing Saved Results
11
Viewing and Managing Saved Results
Figure 11-2 describes the View Results screen.
To view and manage saved results, turn the rotary switch
to SPECIAL FUNCTIONS, use D to highlight
View/Delete Results; then press H.
A Sorting order of the list of results. For example, ID Q means
1
2
4
3
the list is sorted by cable IDs in ascending order. Press L
Sort to change the order.
B Name of the current folder. Press J Change Folder to
select a different folder.
5
C The result’s cable ID and the date and time the test was
completed.
D The overall result for the test. See Chapter 3 for details on
PASS* and FAIL* results.
E Scroll bar, which appears when there is more than one
screen of results to view. Press AD to scroll up
and down. Press BC to scroll up or down a screen at a time
F Press J Change Folder to select a different folder.
6
7
G Press K Delete to delete results or folders.
8
amd109f.eps
H Press L Sort to sort the list of results.
Figure 11-2. View Results Screen
11-5
DTX-Series CableAnalyzer
Technical Reference Handbook
Moving or Copying Results to a Memory Card
(DTX-1800, DTX-1200)
Deleting Results
To move or copy all results from internal memory to the
memory card:
1
Turn the rotary switch to SPECIAL FUNCTIONS.
2
Use D to highlight View/Delete Results; then
press H.
To delete results:
1
Turn the rotary switch to SPECIAL FUNCTIONS.
2
Select Move/Copy Internal Results; then select an
option:
3
If necessary, press J Change Folder to find the
result(s) you want to delete.
•
Move to Memory Card: Moves all results and
their folders to the memory card and deletes all
results from internal memory.
4
Press K Delete; then use D to highlight an
option:
•
Copy to Memory Card: Copies all results and
their folders to the memory card.
•
Delete from Internal Memory: Deletes all results
from internal memory.
The tester displays a message if it cannot move or copy a
result. This occurs in the following cases:
•
A result with the same ID and timestamp already
exists on the memory card.
•
The memory card is full.
•
The memory card is not formatted or is damaged.
11-6
5
•
Current Result: Deletes the result highlighted on
the previous screen.
•
All Results in Folder: Deletes all results in the
current folder.
•
All Results in Tester: Deletes all results in
internal memory.
•
Current Folder: Deletes the current folder and
all its contents.
Press L Delete.
Memory Functions
Formatting a Memory Card (DTX-1800, DTX-1200) or Internal Memory
11
Sorting Results
You can sort the list of saved results in ascending or
descending order by the following parameters:
Formatting a Memory Card (DTX1800, DTX-1200) or Internal Memory
•
PASS/FAIL result
Formatting erases all contents of the memory card or
internal memory.
•
Cable ID
To format a memory card or internal memory:
•
Date and time the test was completed
1
For a memory card, insert the card into the slot on
the left side of the tester.
2
Turn the rotary switch to Autotest
3
Press L Memory.
4
For a DTX-1800 or DTX-1200 with a memory card
installed, press J to select the memory card or
internal memory.
5
Press K Format; then press L Yes.
To sort results:
1
On the View Results screen, press L Sort.
2
Use D to highlight the field you want to sort
by.
3
Press J Ascending or L Descending.
The sorting order applies only to the current folder. The
current sorting order is indicated at the top of the View
Results screen, as shown in Figure 11-2 on page
11-5
The default order is descending by date. The sorting
order reverts to the default when you turn off the tester.
11-7
DTX-Series CableAnalyzer
Technical Reference Handbook
You can also format a memory card or internal memory
in SPECIAL FUNCTIONS mode:
Memory Card Care (DTX-1800, DTX1200)
1
Turn the rotary switch to SPECIAL FUNCTIONS.
•
2
Use D to highlight Memory Status; then press
H.
Clean the card by wiping it with a slightly damp
cloth. If the card’s electrical contacts are dirty, use a
pencil eraser to clean them.
3
For a DTX-1800 or DTX-1200 with a memory card
installed, press J to select the memory card or
internal memory.
•
Keep the card out of direct sunlight and away from
extreme heat or humidity.
•
Do not drop the card on hard surfaces.
•
Keep the card dry.
4
Press K Format; then press L Yes.
11-8
Memory Functions
Uploading Results to a PC
11
Uploading Results to a PC
To upload results to a PC:
1
Install the latest version of LinkWare software on
your PC.
2
Turn on the tester.
3
Connect the tester to the PC with the USB cable
included or the DTX serial cable available from Fluke
Networks.
or
Insert the memory card containing results into the
PC’s memory card reader.
4
Start LinkWare software on the PC.
5
Click Import
on the LinkWare toolbar. Select the
tester’s model from the list.
or
Select Memory card or folder on PC.
6
Select the records you want to import; then click OK.
See the LinkWare online help for details on creating
reports with LinkWare.
11-9
DTX-Series CableAnalyzer
Technical Reference Handbook
11-10
Chapter 12
Maintenance and Specifications
Maintenance
WXWarning
To avoid possible fire, electric shock, personal
injury, or damage to the tester:
•
Do not open the case. No user-serviceable parts
are inside.
•
Replacing electrical parts yourself will void the
tester's warranty and might compromise its
safety features.
•
Use only specified replacement parts for userreplaceable items.
•
Use only Fluke Networks authorized service
centers.
WCaution
Replacing electrical parts yourself might void
the tester's calibration and compromise its
accuracy. If the calibration is void, cable
manufacturers might not extend their warranty
to the cabling you install.
Reference Procedure for Link Interface Adapters
The reference procedure sets a baseline for various
measurements. You should perform the reference
procedure every 30 days or whenever you start using the
tester with a different remote.
See “Setting the Reference” in Chapters 3 and 4 for
details.
12-1
DTX Series CableAnalyzer
Technical Reference Handbook
WCaution
Factory Calibration
To avoid unexpected loss of power, connect the
ac adapter to the tester when updating the
software.
The tester requires calibration at a service center once a
year to ensure that it meets or exceeds the published
accuracy specifications. Contact an authorized Fluke
Networks Service Center for information on getting your
tester calibrated.
Note
Changes to the update procedure may be posted
on the DTX CableAnalyzer software page on the
Fluke Networks website.
To see when the tester last received a service calibration,
turn the rotary switch to SPECIAL FUNCTIONS; then select
Version Information. The tester’s calibration date is also
shown on reports uploaded to a PC.
Updating with a PC
Updating the Tester’s Software
1
Keeping your tester’s software current gives you access to
new features and the latest test limits.
Install the latest version of LinkWare software on
your PC.
2
Download the DTX CableAnalyzer update file from
the Fluke Networks website, or contact Fluke
Networks to get the update by other means. You can
access the software page at
www.flukenetworks.com/support. Save the file to
your hard drive.
3
Make the connections shown in Figure 9-3 using the
USB or DTX serial cable. (The USB connection, if
available, is faster.) Turn on the tester and the smart
remote.
To get a software update, download the update from the
Fluke Networks website or contact Fluke Networks to get
the update by other means.
To see the software version installed in your main and
remote testers, turn the rotary switch to SPECIAL
FUNCTIONS; then select Version Information.
You can update your tester with a PC or with another
tester that is already updated, as described in the
following sections.
12-2
Maintenance and Specifications
Maintenance
12
Note
The DTX serial cable connects a PC’s DB-9
RS-232 serial port to the miniature RS-232 serial
port on the DTX-1800 and DTX-1200 testers. This
cable is included with the DTX-1800 and is
available from Fluke Networks. Table 12-4 shows
the pin connections for this cable.
4
Select Utilities > DTX Utilities > Software Update
from the LinkWare menu, locate and select the .dtx
(DTX update) file; then click Open.
5
The tester reboots, then prompts you about updating
the smart remote’s software. Press K OK to
update the smart remote’s software.
6
To verify the update, turn the rotary switch to
SPECIAL FUNCTIONS; then select Version Information.
USB or
DTX RS-232
serial cable
PASS
TEST
FAIL
TALK
TONE
LOW BATTERY
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TEST
TALK
TALK
amd72f.eps
Figure 12-1. Updating the Software with a PC
12-3
DTX Series CableAnalyzer
Technical Reference Handbook
Updating with Another Tester
You can update a tester’s software using another tester
that is already updated.
PM06
1
Use link interface adapters to connect an updated
tester or smart remote to a tester or smart remote
that needs updating (Figure 9-4).
PASS
TEST
FAIL
TALK
TONE
LOW BATTERY
Note
F3
F2
F1
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
AUTO
TEST
SPECIAL
FUNCTIONS
MONITOR
One of the units must be a main tester.
2
SETUP
TEST
TALK
TALK
Turn on both units; then press Pon either.
The testers compare software versions. If one has
more recent software, the main tester prompts you
about updating the older software.
Press K OK to start the update process.
4
To verify the update, turn the rotary switch to
SPECIAL FUNCTIONS; then select Version Information.
PM06
3
F2
F1
F3
F2
F1
TEST
EXIT
F3
TEST
EXIT
ENTER
ENTER
SAVE
SINGLE
TEST
MONITOR
TALK
AUTO
TEST
SAVE
SETUP
SINGLE
TEST
SPECIAL
FUNCTIONS
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
TALK
amd73f.eps
Figure 12-2. Updating the Software with
an Updated Tester
12-4
Maintenance and Specifications
Maintenance
12
Updating with a Memory Card (DTX-1800,
DTX-1200)
You can update the tester’s software using a memory card
that contains the software update file.
1
Download the DTX CableAnalyzer update file from
the Fluke Networks website, or contact Fluke
Networks to get the update by other means. You can
access the software page at
www.flukenetworks.com/support. Save the file to
your hard drive.
2
Copy the software update file to a memory card.
3
Connect the tester and smart remote together using
a permanent link and a channel adapter or two
channel adapters and a patch cord. Turn on the tester
and the smart remote.
4
Put the memory card in the tester.
5
Turn the rotary switch to SPECIAL FUNCTIONS; then
select Update Software.
6
Press L Yes to start the update procedure.
7
When the tester is updated, it reboots, then prompts
you about updating the smart remote’s software.
Press K OK to update the smart remote’s
software.
8
To verify the update, turn the rotary switch to
SPECIAL FUNCTIONS; then select Version Information.
Updating the Limits or Cable Types Database
Fluke Networks may release a test limits or cable types
database that is not part of a software update. To install a
new database in your tester, use the Modify DTX Test
Limits utility in LinkWare software. See the LinkWare
online help for details.
12-5
DTX Series CableAnalyzer
Technical Reference Handbook
Cleaning
To retrain the battery gauge:
Clean the display with glass cleaner or isopropyl alcohol
and a soft, lint-free cloth. Clean the case with a soft cloth
dampened with water or water and a mild soap.
1
Connect the main and remote testers together using
a permanent link adapter and a channel adapter, two
channel adapters or two coaxial adapters and a patch
cord, or two fiber modules and a reference test cord.
2
Connect the ac adapters to the main and remote
testers. Turn on both testers.
3
Turn the rotary switch to SPECIAL FUNCTIONS; then
select Battery Status. Verify that both the main and
remote battery gauges are shown. If the remote
gauge is missing, check the connections between the
two units.
4
Press J Train Battery.
WCaution
To avoid damaging the display or the case, do
not use solvents or abrasive cleansers.
Retraining the Battery Gauge
The accuracy of the battery gauge may drift over time if
the battery is frequently recharged before being fully
discharged. Retraining the battery gauge restores its
accuracy.
Retraining can take 17 to 30 hours. The time is shorter if
you start with the batteries discharged and modules (such
as the fiber module) installed in the main and remote
testers.
To abort the retraining, hold down the power key
(M) on the main and remote testers until they turn
off.
5
12-6
Retraining is complete when the testers have turned
off and the LED by the ac adapter connection is
green.
Maintenance and Specifications
Maintenance
12
Replacing the Battery
Fiber Module Maintenance
Replace the lithium ion battery pack when its life becomes
noticeably shorter or when it fails to reach full charge.
The battery is normally good for up to 400
charge/discharge cycles.
The following sections apply to the optional DTX-MFM2,
DTX-GFM2, and DTX-SFM2 fiber modules.
/Note
Dispose of the lithium ion battery pack in
accordance with local regulations.
An internal lithium battery maintains the tester’s clock,
when you remove the battery pack. This battery typically
lasts about 5 years. When the battery begins to fail, the
tester will lose the current date and time when you
remove the battery pack. If the internal lithium battery
fails, send the tester to a Fluke Networks service center for
a replacement.
Optical Connector and Adapter Care
Periodically clean and inspect the module’s optical
connectors as described in Chapter 6.
Replacing Fiber Reference Test Cords
Choose replacement reference test cords that meet the
following requirements:
•
Core and cladding size: match the fiber to be tested
•
Connector polish: PC or UPC
•
Reference test cord length: minimum 2 m; maximum
5m
To ensure optimum performance from your tester, get
replacement cords from Fluke Networks.
12-7
DTX Series CableAnalyzer
Technical Reference Handbook
Storage
If Something Seems Wrong
•
If something seems wrong with the tester, refer to
Table 12-1.
•
•
Before storing the tester or an extra battery for an
extended period, charge the battery to between
70 % and 90 % of full charge. Check the battery
every 4 months and recharge if necessary.
Keep a battery attached to the tester during storage.
Removing the battery for long periods shortens the
life of the internal lithium battery that maintains the
clock.
See “Environmental and Regulatory Specifications”
on page 12-15 for storage temperatures.
12-8
If Table 12-1 does not help you solve a problem with the
tester, contact Fluke Networks for additional help. See
Chapter 1 for contact information.
If possible, have the tester’s serial number, software and
hardware versions, and calibration date available. To see
this information, turn the rotary switch to SPECIAL
FUNCTIONS; then select Version Information.
For warranty information, refer to the warranty at the
beginning of this manual. If the warranty has lapsed,
contact Fluke Networks for repair prices.
Maintenance and Specifications
If Something Seems Wrong
12
Table 12-1. Troubleshooting the Tester
The keypad does not respond.
Press and hold M until the tester turns off. Then turn the tester on again. If the problem persists, update the tester’s
software if a newer version is available.
System error occurs.
Press K OK. If the tester does not recover, press and hold M until the tester turns off. If the error recurs, update the
tester's software. If the tester already has the latest software, contact Fluke Networks for assistance.
The tester will not turn on, even with the ac adapter connected.
The battery may be completely discharged. Let the battery charge for a few minutes with the tester off.
The battery LED is flashing red.
The battery did not reach full charge within 6 hours. Verify that the battery was charged within the temperature range
of 32 °F to 113 °F (0 °C to 45 °C). Disconnect then reconnect ac power and try charging the battery again. If the battery
does not charge the second time, retrain the battery gauge. See page 12-6.
The tester will not turn on even when the battery is charged.
The battery’s safety switch has tripped. Connect the ac adapter for a few minutes to reset the switch.
-continued-
12-9
DTX Series CableAnalyzer
Technical Reference Handbook
Table 12-1. Troubleshooting the Tester (cont.)
All the LEDs on the smart remote are flashing
The smart remote detects excessive voltage on the cable. Unplug the cable immediately.
Test results appear to be incorrect.
The tester may not be configured correctly. For example, the wrong test standard or cable type may be selected or the
NVP may be incorrect.
The tester may need referencing. See Chapter 3 or 4 for details.
The reference test cords and adapters are good, but the reference power level is too low.
Clean the tester’s input and output connectors and use a fiber microscope to inspect the endfaces. If an endface is
damaged, contact Fluke Networks for service information.
A fiber test produces a negative loss reading.
There is a problem with the reference. Set the reference and test the cabling again. See Chapters 6 and 8 for details.
12-10
Maintenance and Specifications
Options and Accessories
Options and Accessories
To order options and accessories (Table 12-2), contact
Fluke Networks as described in Chapter 1.
12
For the latest list of DTX CableAnalyzer options and
accessories and a complete list of fiber test accessories visit
the Fluke Networks website at www.flukenetworks.com.
Table 12-2. Options and Accessories
Option or Accessory
Fluke Networks
Model Number
Cat 6/Class E Channel Adapter
DTX-CHA001
Cat 6/Class E Channel Adapters, set of 2
DTX-CHA001S
Universal Permanent Link Adapter
DTX-PLA001
Universal Permanent Link Adapters, set of 2
DTX-PLA001S
Cat 6 Centered Personality Module
DSP-PM06
Personality modules for IDC and legacy cabling systems
DSP-PMxx
Many models are available. Contact Fluke Networks or visit the Fluke Networks website for
details.
-continued-
12-11
DTX Series CableAnalyzer
Technical Reference Handbook
Table 12-2. Options and Accessories (cont.)
Option or Accessory
Fluke Networks Model Number
Siemon Tera Channel Adapter
DTX-CHA011
Siemon Tera Permanent Link Adapter
DTX-PLA011
Siemon Tera adapter kit
DTX-TERA
Nexans GG45 Channel Adapter
DTX-CHA012
Nexans GG45 Permanent Link Adapter
DTX-PLA012
Nexans GG45 adapter kit
DTX-GG45
Patch Cord Adapter Kit
DTX-PCU6S
DTX-COAX Coaxial Adapter Kit
DTX-COAX
DTX-NSM Network Service Module
DTX-NSM
DTX-MFM2 Multimode Fiber Module, 850 nm/1300 nm
DTX-MFM2
DTX-GFM2 Gigabit Fiber Module, 850 nm/1310 nm
DTX-GFM2
DTX-SFM2 Singlemode Fiber Module, 1310 nm/1550 nm
DTX-SFM2
-continued-
12-12
Maintenance and Specifications
Options and Accessories
12
Table 12-2. Options and Accessories (cont.)
Option or Accessory
Fluke Networks Model Number
DTX-FTK Fiber Test Kit
Fiber optic meter module and 850 nm/1300 nm SimpliFiber source. Measures
power and loss at 850 nm/1300 nm (1310 nm/1550 nm with optional source).
DTX-FTK
DTX-FOM Fiber Optic Meter Module
Measures power and loss at 850 nm/1300 nm and 1310 nm/1550 nm.
DTX-FOM
Permanent Link Calibration Kit
DSP-PLCAL
LinkRunner Cable ID Locator Kit (ID locators 1 through 8)
CABLE ID KIT
Lithium Ion Battery Pack
DTX-LION
DTX RS-232 Serial Cable (DB-9 to IEEE 1394)
DTX-SER
USB Interface Cable
DTX-USB
Carrying Strap
DTX-STRP
Carrying case
DTX-CASE
AC Charger, North America, 120VAC
DTX-ACNA
AC Charger, universal, 120-240VAC
DTX-ACUN
Headset for DSP and DTX CableAnalyzers
DTX-TSET
-continued-
12-13
DTX Series CableAnalyzer
Technical Reference Handbook
Table 12-2. Options and Accessories (cont.)
Option or Accessory
Fluke Networks Model Number
32 MB SD Memory Card
DTX-SDC32
64 MB SD Memory Card
DTX-SDC64
128 MB SD Memory Card
DTX-SDC128
Memory Card Reader, USB
DSP-MCR-U
Memory Card Carry Case
MMC CASE
IntelliTone IT100 Probe
MT-8200-53A
LinkWare Cable Test Management Software
(You may download this at no charge from the Fluke Networks website.)
LinkWare
LinkWare Stats Statistical Report Option
LinkWare-Stats
DTX-1800 main unit replacement with battery pack
DTX-1800/MU
DTX-1800 smart remote replacement with battery pack
DTX-1800/RU
DTX-1200 Main Replacement with Battery Pack
DTX-1200/MU
DTX-1200 Smart Remote Replacement with Battery Pack
DTX-1200/RU
DTX-LT Main Replacement with Battery Pack
DTX-LT/MU
DTX-LT Smart Remote Replacement with Battery Pack
DTX-LT/RU
12-14
Maintenance and Specifications
Specifications
12
Specifications
Environmental and Regulatory Specifications
Operating temperature
32 °F to 113 °F (0 oC to 45 oC)*
Storage temperature
-4 °F to +140 °F (-20 oC to +60 oC)
Operating relative humidity
(% RH without condensation)
32 °F to 95 °F (0 °C to 35 °C): 0 % to 90 %
95 °F to 113 °F (35 °C to 45 °C): 0 % to 70 %
Vibration
Random, 2 g, 5 Hz-500 Hz
Shock
1 m drop test with and without module and adapter attached
Safety
CSA C22.2 No. 1010.1: 1992
EN 61010-1 1st Edition + Amendments 1, 2
Pollution degree
2
Altitude
Operating: 4000 m; Storage:12000 m
EMC
EN 61326-1
Laser safety (for fiber test module)
Class I CDRH. Complies to EN 60825-2
* DTX-MFM2/GFM2/SFM2 Fiber Modules: 32 °F to 104 °F (0 oC to 40 oC)
12-15
DTX Series CableAnalyzer
Technical Reference Handbook
Tests supported: shielded and unshielded cable, TIA
Cat 3, 4, 5, 5e, and 6 and ISO/IEC Class C and D
channels
WXWarning
Under no circumstances is this product intended
for direct connection to telephony inputs,
systems, or equipment, including ISDN inputs.
Doing so is a misapplication of this product,
which could result in damage to the tester and
create a potential shock hazard to the user.
Service Calibration Period
One year.
Standard Link Interface Adapters
•
Cat 6/Class E permanent link adapters
Plug type and life: shielded 8-pin modular (RJ45);
>5000 insertions
Tests supported: shielded and unshielded cable, TIA
Cat 3, 4, 5, 5e, and 6 and ISO/IEC Class C and D, and E
permanent link
•
Cat 6/Class E channel adapters
Plug type and life: shielded 8-pin modular (RJ45);
>5000 insertions
12-16
Cable Types Tested
Shielded and unshielded twisted pair (STP, FTP, SSTP, and
UTP) LAN cabling:
•
TIA Category 3, 4, 5, 5e, and 6: 100 Ω
•
ISO/IEC Class C and D: 100 Ω and 120 Ω
Note
For availability of additional adapters that allow
testing to other performance standards,
different cabling types, or fiber optic cabling,
contact Fluke Networks.
Maintenance and Specifications
Specifications
12
Time for Autotest
Length
Full 2-way Autotest of Category 6 UTP cable in 12
seconds or less.
Summary of Performance Specifications
Note
Length specifications do not include the
uncertainty of the cable’s NVP value.
Note
All specifications for tests on twisted pair
cabling apply to 100 Ω cable. Contact Fluke
Networks for information on measurement
performance for cable with a different
impedance.
For Category 6/Class E test modes or below, the DTX
CableAnalyzer is compliant with Level III requirements of
TIA/EIA-568-B.2-1 and IEC 61935-1.
For Class F test modes, the DTX-1800 is compliant with
nd
Level IV requirements as in the draft 2 edition of IEC
61935-1.
Twisted Pair Cabling
Parameter
Range
Resolution
Accuracy
Without Remote
With Remote
800 m (2600 ft)
150 m (490 ft)
0.1 m or 1 ft
0.1 m or 1 ft
± (0.3 m + 2 %);
0 m to 150 m
± (0.3 m + 2 %)
± (0.3 m + 4 %);
150 m to 800 m
12-17
DTX Series CableAnalyzer
Technical Reference Handbook
Propagation Delay
DC Loop Resistance Test
Twisted pair cabling
Parameter
Range
Resolution
Accuracy
Without Remote
With Remote
4000 ns
750 ns
1 ns
1 ns
± (2 ns + 2 %)
± (2 ns + 2 %);
0 ns to 750 ns
± (2 ns + 4 %);
750 ns to 4000 ns
Delay Skew
Parameter
Range
Resolution
Accuracy
12-18
Twisted Pair Cabling
0 ns to 100 ns
1 ns
± 10 ns
Parameter
Range
Resolution
Twisted pair cabling
0 Ω to 530 Ω
0.1 Ω
Accuracy
± (1 Ω + 1 %)
Overload
Recovery
Time
Less than 10 minutes to rated
accuracy following an overvoltage.
Referencing is required after
repeated or prolonged
overvoltage.
Maintenance and Specifications
Specifications
12
Table 12-3. Level IV Accuracy Performance Parameters per IEC Guidelines*
Parameter
Field Tester with Level IV
Permanent Link Adapter
Baseline Field Tester
Dynamic range
3 dB over test limit
PPNEXT and FEXT 65 dB
PSNEXT and FEXT 62 dB
Amplitude resolution
0.1 dB
Frequency range and
resolution
1 MHz to 31.25 MHz: 125 kHz
31.25 MHz to 100 MHz: 250 kHz
100 MHz to 250 MHz: 500 kHz
250 MHz to 600 MHz: 1 MHz
Dynamic Accuracy NEXT
Dynamic Accuracy ELFEXT
Field Tester with Level IV
Channel Adapter
± 0.75 dB
± 1.0 dB (FEXT dynamic accuracy is tested to ± 0.75 dB)
* DTX-1800 up to 900 MHz. DTX-1200 and DTX-LT up to 350 MHz.
-continued-
12-19
DTX Series CableAnalyzer
Technical Reference Handbook
Table 12-3. Level IV Accuracy Performance Parameters per IEC Guidelines (cont.)*
Parameter
Source/load return
loss
Baseline Field Tester
1 MHz to 300 MHz:
20 – 12.5 log(f/100),
20 dB maximum
Field Tester with Level IV
Permanent Link Adapter
Field Tester with Level IV
Channel Adapter
1- 300 MHz: 18 – 12.5 log(f/100), 20 dB maximum
300 MHz to 600 MHz: 12 dB
300 MHz to 600 MHz: 14 dB
Random Noise
Floor
100 - 15 log(f/100),
90 dB maximum
95 - 15 log(f/100), 85 dB maximum
Residual NEXT
90 – 20 log(f/100)
(measured to 85 dB maximum)
85 - 20 log(f/100)
(measured to 85 dB
maximum)
72.4 - 15 log(f/100)
(measured to 85 dB
maximum)
Residual FEXT
80 - 20 log(f/100)
(measured to 85 dB maximum)
75 - 20 log(f/100)
(measured to 85 dB
maximum)
60 - 15 log(f/100)
(measured to 85 dB
maximum)
Output Signal
Balance
40 - 20 log(f/100)
(measured to 60 dB maximum)
37 - 20 log(f/100) (measured to 60 dB maximum)
* DTX-1800 up to 900 MHz. DTX-1200 and DTX-LT up to 350 MHz.
-continued-
12-20
Maintenance and Specifications
Specifications
12
Table 12-3. Level IV Accuracy Performance Parameters per IEC Guidelines (cont.)*
Parameter
Common Mode
Rejection
40 - 20 log(f/100)
(measured to 60 dB maximum)
Field Tester with Level
IV Channel Adapter
37 - 20 log(f/100)
(measured to 60 dB maximum)
± 0.5 dB (applicable when IL > 3 dB)
Tracking
Directivity
Field Tester with Level IV
Permanent Link Adapter
Baseline Field Tester
(applicable when IL > 3 dB)
1 MHz to 300 MHz: 25 - 7log(f/100), 25 dB maximum
1 MHz to 300 MHz:
27 - 7log(f/100),
30 dB maximum
300 MHz to 600 MHz: 21.7 dB
(applicable when IL > 3 dB)
300 MHz to 600 MHz: 23.7 dB
Source Match
Return loss of
Termination
20 dB (applicable when IL > 3dB)
(applicable when IL > 3 dB)
1 MHz to 250 MHz: 18 - 15log(f/100), 25 dB maximum
1 MHz to 250 MHz:
20 - 15log(f/100),
25 dB maximum
250 MHz to 600 MHz: 12 dB
(applicable when IL > 3dB)
250 MHz to 600 MHz: 14 dB
* DTX-1800 up to 900 MHz. DTX-1200 and DTX-LT up to 350 MHz.
12-21
DTX Series CableAnalyzer
Technical Reference Handbook
Measurement Accuracy
The measurement accuracy of the DTX Series
CableAnalyzer testers meets or exceeds accuracy Level IV.
The DTX-1800 measures up to 900 MHz and is fully
compliant with accuracy Level IV. The DTX-1200 and
DTX-LT measure up to 350 MHz with accuracy Level IV
performance.
Worst case accuracy performance parameters are used
for asterisk (*) results reporting. These are based on
computation of the overall measurement accuracy based
12-22
on the worst case of each parameter at each frequency
data point. Observed differences between laboratory
equipment and DTX CableAnalyzers using calibration
verification artifacts were used as a confirmation.
Accuracies computed from the parameters in Table 12-3
are shown in Figures 12-3 through 9-6.
Maintenance and Specifications
Specifications
12
2.5
Level IV Accuracy
Worse
1.5
Better
Accuracy in dB
2
1
Worst Case DTX Accuracy
Network Analyzer Accuracy
0.5
Best Case DTX Accuracy
0
0
100
200
300
400
500
600
Frequency in MHz
amd110f.eps
Figure 12-3. Baseline Insertion Loss Measurement Accuracy
12-23
DTX Series CableAnalyzer
Technical Reference Handbook
3
Level IV Accuracy
Worse
2
1.5
Better
Accuracy in dB
2.5
Worst Case DTX Accuracy
1
Network Analyzer Accuracy
Best Case DTX Accuracy
0.5
0
0
100
200
300
400
500
600
Frequency in MHz
amd111f.eps
Figure 12-4. Baseline NEXT Loss Measurement Accuracy
12-24
Maintenance and Specifications
Specifications
12
5
4.5
Worse
3.5
3
2.5
Better
Accuracy in dB
4
Level IV Accuracy
Worst Case DTX Accuracy
2
1.5
Network Analyzer Accuracy
1
0.5
Best Case DTX Accuracy
0
0
100
200
300
400
500
600
Frequency in MHz
amd112f.eps
Figure 12-5. Baseline Return Loss Measurement Accuracy
12-25
DTX Series CableAnalyzer
Technical Reference Handbook
7
Level IV Accuracy
Worse
5
Better
Accuracy in dB
6
Worst Case DTX Accuracy
4
3
Network Analyzer Accuracy
2
1
Best Case DTX Accuracy
0
0
100
200
300
400
500
600
Frequency in MHz
amd113f.eps
Figure 12-6. Baseline ELFEXT Measurement Accuracy
12-26
Maintenance and Specifications
Specifications
12
HDTDX Analyzer Specifications for Cables <100 m
(328 ft)
The specifications below are typical for cables less than
100 m (328 ft).
Parameter
Distance accuracy
Distance resolution
Characteristic Impedance
The tester reports an estimate of the cable's impedance
at 4 m from the beginning of the link. The accuracy of
the measurement is relative to a 100 Ω terminating
resistance.
Twisted Pair Cable
± (1 ft (0.3 m) + 2 % distance)
1 ft or 0.1 m
Parameter
Range
Accuracy
HDTDR Analyzer Specifications for Cables <100 m
(328 ft)
The specifications below are for HDTDR tests on cables
less than 100 m (328 ft) long.
Parameter
Distance accuracy
Distance resolution
Twisted Pair Cable
± (1 ft (0.3 m) + 2 % distance)
Resolution
Twisted Pair Cable
70 Ω - 180 Ω
± (5 Ω + 5 % of  100 Ω – Measured )
1Ω
Impulse Noise
Adjustable from 10 mV to 500 mV in 10 mV steps.
Monitors either polarity of noise on pair 3, 6.
Minimum detectable impulse width: 10 ns
1 ft or 0.1 m
12-27
DTX Series CableAnalyzer
Technical Reference Handbook
DTX-COAX Coaxial Adapter Specifications
Input connector
Male F-connector. BNC adapter allows connection to coaxial network cabling
Cable types tested
Coaxial video and network cabling
Length
Range:
800 m (2625 ft) with or without remote
Resolution: 0.1 m or 1 ft
Accuracy: 0 m to 150 m (0 ft to 492 ft): ±(0.3 m + 2 %)
150 m to 800 m (492 ft to 2625 ft) : ±(0.3 m + 4 %)
Propagation delay
Range:
4000 ns with or without remote
Resolution: 1 ns
Accuracy: 0 ns to 750 ns: ±(2 ns + 2%); 750 ns to 4000 ns: ±(2 ns + 4%)
Loop resistance
Range:
0 Ω to 530 Ω
Resolution: 0.1 Ω
Accuracy: ±(1 Ω + 1 %)
-continued-
12-28
Maintenance and Specifications
Specifications
12
DTX-COAX Coaxial Adapter Specifications (cont.)
Insertion loss
Frequency range and resolution:
1 MHz to 31.25 MHz: 125 kHz
31.5 MHz to 100 MHz: 250 kHz
100.5 MHz to 250 MHz: 500 kHz
251 MHz to 900 MHz: 1 MHz
Source/load return loss (typical):
(75 Ω reference impedance)
1 MHz to 300 MHz: 20 – 12.5 log(f/100), 20 dB
maximum
300 MHz to 900 MHz: 14 dB
Random noise floor (typical):
90 dB
Characteristic
impedance
Range:
45 Ω to 110 Ω
Resolution: 1 Ω
Accuracy: ± (5 Ω + 5 % of  75 Ω – Measured )
HDTDR
Range:
350 m (1148 ft) with or without remote
Resolution: 0.1 m or 1 ft
Accuracy: 0 m to 150 m (0 ft to 492 ft): ±(0.3 m + 2 %)
150 m to 360 m (492 ft to 1148 ft) : ±(0.3 m + 4 %)
12-29
DTX Series CableAnalyzer
Technical Reference Handbook
DTX-NSM Module Specifications
Input
connectors
Twisted pair cable: 8-pin modular jack (RJ45)
Fiber optic cable: SFP port (small form pluggable)
Indicator
Green LED indicates link activity
Functions
Verifies link connectivity and network service availability, checks link utilization and error
conditions, verifies the presence of PoE (Power over Ethernet), blinks a hub/switch activity LED,
detects LinkRunner cable ID locators
Protocol
Complies with IEEE 802.3 (Ethernet) specifications
12-30
Maintenance and Specifications
Specifications
12
DTX-MFM2/SFM2/GFM2 Fiber Module Specifications
Power Meter Specifications
Input connector
Interchangeable connector adapter (SC standard)
Detector type
InGaAs
Calibrated wavelengths
850 nm, 1310 nm, 1550 nm
Power measurement range
0 dBm to -60 dBm (1300/1310 nm and 1550 nm)
0 dBm to -52 dBm (850 nm)
Display resolution
dB, dBm: 0.01
Linear (µW): >400, >40, >4, >0.4, ≤ 0.4: 1, 0.1, 0.01, 0.001, 0.0001
Power measurement uncertainty (accuracy)
± 0.25 dB1
Measurement linearity
(18 °C to 28 °C constant temperature)
1300/1310 nm and 1550 nm: ± 0.1 dB2
850 nm: ± 0.2 dB3
Re-calibration period
1 year
Display update rate
1 reading per second
2. Linearity for 1310 nm and 1550 nm:
1. Under the following conditions:
•
Power level: -20 dBm, continuous wave
•
At 850 nm: 62.5/125 µm fiber with 0.275 NA
•
At 1310 nm and 1550 nm: 9/125 µm
•
Ambient temperature: 23 C ±5 C
o
o
•
Between 0 dBm and -55 dBm: ± 0.1 dB
•
< -55 dBm: ± 0.2 dB
3. Linearity for 850 dBm:
•
Between 0 dBm and -45 dBm: ± 0.2 dB
•
< -45 dBm: ± 0.25 dB
12-31
DTX Series CableAnalyzer
Technical Reference Handbook
Loss/Length Specifications
Specification
Testing speeds
(excluding referencing
times)
DTX-MFM2
Multimode Modules
DTX-SFM2
Singlemode Modules
Far End Source mode (1 wavelength): ≤ 4.5 s
Loopback mode (2 wavelengths, one direction): ≤ 5 s
Smart Remote mode (2 wavelengths, one direction): ≤ 15 s
Output connector
Input connector
DTX-GFM2
Gigabit Modules
SC
Interchangeable connector adapter (SC standard)
Fiber types tested
50/125 µm to 62.5/125 µm
multimode
50/125 µm to 62.5/125 µm
multimode
9/125 µm singlemode
Source type and
wavelengths
Multimode LED source
850 nm ± 30 nm
1300 nm ± 20 nm
VCSEL diode: 850 nm ± 20 nm
Fabry-Perot laser diode:
1310 nm ± 20 nm
Fabry-Perot laser diode
1310 nm ± 20 nm
1550 nm ± 30 nm
Maximum length
measurement
5 km of 50 µm or 62.5 µm
multimode fiber
5 km of 50 µm or 62.5 µm
multimode fiber
10 km of 9 µm singlemode
fiber
-continued-
12-32
Maintenance and Specifications
Specifications
12
Loss/Length Specifications (cont.)
Specification
DTX-MFM2
Multimode Modules
± 15 ns plus ± 2 % of propagation time
Propagation time accuracy
Output power stability over 8-hour
period (after 5 minute warmup)
Detector type
Calibrated wavelengths
Power measurement range
Display Resolution
DTX-SFM2
Singlemode Modules
± 1.5 m plus ± 2 % of length
Length measurement accuracy
Output power (nominal)
DTX-GFM2
Gigabit Modules
≥ -20 dBm
≥ -7 dBm
± 0.10 dB over 8
hours, 5 minute
warm-up time
± 0.25 dB over 8 hours,
5 minute warm-up
time
≥ -7 dBm
± 0.25 dB over 8 hours,
5 minute warm-up
time
InGaAs
850 nm, 1310 nm, 1550 nm
850 nm: 0 dBm to -52 dBm
1300/1310 nm, 1550 nm: 0 dBm to -60 dBm
dB, dBm: 0.01
Linear (µW): >400, >40, >4, >0.4, ≤ 0.4: 1, 0.1, 0.01, 0.001, 0.0001
-continued-
12-33
DTX Series CableAnalyzer
Technical Reference Handbook
Loss/Length Specifications (cont.)
DTX-MFM2
Multimode Modules
Specification
1300/1310 nm and 1550 nm: ±0.1 dB2
850 nm: ±0.2 dB3
Measurement linearity
(18 °C to 28 °C constant temperature)
≥ 12 dB
≥ 22 dB
Re-calibration period
1 year
Display update rate
1 reading per second
1.
2.
Under the following conditions:
•
Power level: -20 dBm, continuous wave
•
At 850 nm: 62.5/125 µm fiber with 0.275 NA
•
At 1310 nm and 1550 nm: 9 /125 µm
•
Ambient temperature: 23 C ±5 C
12-34
o
o
DTX-SFM2
Singlemode Modules
± 0.25 dB1
Power measurement uncertainty (accuracy)
Dynamic Range for main-remote
communication and nominal length
measurement
DTX-GFM2
Gigabit Modules
3.
Linearity for 1310 nm and 1550 nm:
•
Between 0 dBm and -55 dBm: ± 0.1 dB
•
< -55 dBm: ± 0.2 dB
Linearity for 850 dBm:
•
Between 0 dBm and -45 dBm: ± 0.2 dB
•
< -45 dBm: ± 0.25 dB
≥ 22 dB
Maintenance and Specifications
Specifications
12
Visual Fault Locator
Output power*
316 µw (-5 dBm) ≤ peak power ≥ 1.0 mw (0 dbm)
Operating wavelength
650 nm nominal
Spectral width (RMS)
± 3 nm
Output modes
Continuous wave and pulsed mode (2 Hz to 3 Hz blink frequency)
Connector adapter
2.5 mm universal
Laser safety
Class II CDRH
* Into SMF-28 singlemode fiber, continuous wave and pulse modes, SC/UPC connector.
Tone Generator
Generates tones that can be detected by a tone probe,
such as a Fluke Networks IntelliTone probe. The tones
are generated on all pairs.
Frequency range of tones: 440 Hz to 831 Hz
12-35
DTX Series CableAnalyzer
Technical Reference Handbook
Power
Electromagnetic Compatibility
Notes
You do not need to fully discharge the battery
before recharging it.
The battery will not charge at temperatures
outside of 0 °C to 45 °C (32 °F to 113 °F). The
battery charges at a reduced rate between 40 °C
and 45 °C (104 °F and 113 °F).
•
Main unit and remote: Lithium-ion battery pack,
7.4 V, 4000 mAh
•
Typical battery life: 10 to 12 hours
•
Charge time (with tester off): 4 hours (below 40 °C)
•
AC adapter/charger, USA version: Linear power
supply; 108 V ac to 132 V ac input; 15 V dc, 1.2 A
output
•
AC adapter/charger, international version: Switching
power supply; 90 V ac to 264 V ac input; 15 V dc;
1.2 A output
•
Memory backup power in main unit: Lithium battery
•
Typical life of lithium battery: 5 years
12-36
Emissions: EN 61326-1, Class A
Immunity: EN 61326-1
Input Ratings
A DTX Series tester and remote are designed to measure
unpowered cables. The inputs are protected against
continuous, current-limited telco voltages
(<100 mA) and can withstand occasional overvoltages of
less than 30 V rms (42 V peak, 60 V dc).
Certification and Compliance
;
N10140
Conforms to relevant Australian
standards
P
Conforms to relevant European Union
directives.
)
Listed by the Canadian Standards
Association.
Maintenance and Specifications
Specifications
12
CSA Standards
CAN/CSA-C22.2 No. 1010.1-92 + Amendment 2: 1997 and
CAN/CSA-C22.2 No. 1010.1 2000 (2nd edition) Safety
Requirements for Electrical Equipment for Measurement,
Control, and Laboratory Use, Part 1: General
Requirements.
Laser Classification and Safety for DTX-MFM2,
DTX-GFM2, and DTX-SFM2 Fiber Modules
OUTPUT port: Class 1
VFL port: Class 2
Complies with EN60825-1 and EN61010-1 (CE) and CFR21
Safety
CAN/CSA-C22.2 No. 1010.1-92 + Amendment 2: 1997;
Overvoltage Category II, Pollution degree 2, 30 V.
EN61010, 2nd Edition, MEASUREMENT (Installation)
CATEGORY I, Pollution Degree 2 per IEC1010-1 refers to
the level of Impulse Withstand Voltage protection
provided. Equipment of MEASUREMENT CATEGORY I is
for measurements performed on circuits not directly
connected to mains.
Memory for Test Results
Internal memory stores up to 250 Cat 6 Autotest results,
including graphical data.
The 16 MB memory card included stores up to 500 Cat 6
Autotest results, including graphical data.
1 MB Flash EPROM allows software and test limit updates.
LinkWare software lets you upload Autotest results to a
PC from the tester or a memory card reader.
12-37
DTX Series CableAnalyzer
Technical Reference Handbook
The RS-232 (EIA/TIA-232) serial port connects to a PC with
a DB-9 to IEEE 1394 (Firewire) cable available from Fluke
Networks. Table 12-4 shows the pin connections for the
DTX serial cable.
Serial Interfaces
The tester and smart remote have a USB client interface.
The main DTX-1800 and DTX-1200 testers also have an
RS-232 (EIA/TIA-232) interface.
Table 12-4. DTX RS-232 Cable Pin Connections
Tester End (IEEE 1394)
Signal Name
PC End (female DB9)
Pin
Direction
Pin
Signal Name
Data carrier detect
1
←
4
Data terminal ready
Transmit data
2
→
2
Receive data
Receive data
3
←
3
Transmit data
Signal ground
4
5
Signal ground
←→
Dimensions (without adapter or module)
Display
8.5 in x 4.5 in x 2.3 in (21.6 cm x 11.4 cm x 5.8 cm),
nominal
3.7 in (9.4 cm) diagonal, 1/4 VGA, passive color,
transmissive LCD with backlight.
Weight (without adapter or module)
2.4 lb (1.1 kg), nominal
12-38
Appendices
Appendix
A
B
Title
Page
Fiber Test Method Reference Tables.................................................................................... A-1
Loss Test Methods for Fiber Cabling .................................................................................... B-1
Appendix A
Fiber Test Method Reference Tables
Industry standards use different names for equivalent
fiber test methods. Table A-1 shows the names used in
this manual and by four common industry standards for
the three fiber test methods.
Table A-1. Test Method Names
Link End Connections
Included in Loss Results
This
Manual
TIA/EIA-526-14A
(multimode)
TIA/EIA-526-7
(singlemode)
IEC 61280-4-1
(multimode)
IEC 61280-4-2
(singlemode)
1 connection
Method A
Method A
Method A.2
Method 1
Method A2
2 connections
Method B
Method B
Method A.1
Method 2
Method A1
None
Method C
Method C
Method A.3
Method 3
Method A3
A-1
DTX Series CableAnalyzer
Technical Reference Handbook
Table A-2 shows the test methods required by standards.
Table A-2. Test Methods Required by Standards
Standard or
Application
Test Method
(as named in this manual)
Standard or
Application
Test Method
(as named in this manual)
TIA-568-B
B
10GBASE-S
B
ISO 11801
B
10GBASE-L
B
EN50173
B
10GBASE-LX
B
10BASE-FB
A
10GBASE-E
B
10BASE-FP
A
Fibre Channel
B
10BASE-FL
A
ATMl
B
10/100BASE-SX
B
FDDI
B
100BASE-FX
B
Token Ring
B
1000BASE-LX
B
B
1000BASE-SX
B
Fluke Networks
General Fiber
A-2
Appendix B
Loss Test Methods for Fiber Cabling
Introduction
Note
The following discussion uses TIA/EIA-526
terminology for the names of the three
common test methods. See Appendix A for a
cross-reference of the method names in various
standards.
The number of fiber connections represented in loss test
results depends on the method used for making
reference and test connections. This appendix describes
the three common methods, A, B, and C, which are
defined in the ANSI/TIA/EIA-526-14A multimode
standard, and their equivalents, A.2, A.1, and A.3, which
are defined in the ANSI/TIA/EIA-526-7 singlemode
standard.
This appendix also describes modified and alternate
connections you can use for all types of connectors,
including installations that have different connector
styles at the patch panels and outlets.
Use the Test Method setting on the tester’s Fiber menu in
SETUP to record the method used. This setting does not
affect loss results. It is only saved with the results to
record which method you used.
Note
ANSI/TIA/EIA-526-14A and 526-7 specify Method
B for measuring loss on multimode premises
fiber and Method A.1 for singlemode premises
fiber, respectively.
B-1
DTX Series CableAnalyzer
Technical Reference Handbook
Method A/A.2
Method A/A.2 results account for the loss of one
connection plus the fiber in the link. This method is
suitable for links where the fiber's loss is a significant
portion of the total loss, such as when the link is long or
a patch cord is used at only one end. Method A is defined
in the ANSI/TIA/EIA-526-14A multimode standard.
Method A.2 is defined in the ANSI/TIA/EIA-526-7
singlemode standard.
Method A/A.2 reference connections cancel out the
effects of the reference test cords and one connection in
each fiber path, as shown in Figure B-1.
B-2
The test connections add one connection, plus the fiber
in the link, to each path. Loss results for Method A/A.2
therefore represent only one connection plus the fiber in
the link. Because the results omit one connection,
ANSI/TIA/EIA-526-14A and 526-7 do not recommend
Method A/A.2 for testing premises fiber, where patch
cords are typically used at both ends of a link and
connector loss is a significant portion of total loss.
Loss Test Methods for Fiber Cabling
Method A/A.2
B
amd69f.eps
Figure B-1. Method A/A.2 Reference and Test Connections (singlemode shown)
B-3
DTX Series CableAnalyzer
Technical Reference Handbook
Method B/A.1
Method B/A.1 results account for the loss of two
connections plus the fiber in the link. This method is
suitable for testing premises fiber, where patch cords are
typically used at both ends of the link and connector loss
is a significant portion of the total loss. Method B is
defined in the ANSI/TIA/EIA-526-14A multimode
standard. Method A.1 is defined in the ANSI/TIA/EIA-5267 singlemode standard.
Method B/A.1 reference connections cancel out the
effects of the reference test cords, as shown in Figure B-2.
Loss results for Method B/A.1 therefore represent both
connections plus the fiber in the link. ANSI/TIA/EIA-52614A and 526-7 specify Methods B and A.1 for testing
multimode and singlemode premises fiber, where
connector loss is a significant portion of the total loss.
B-4
Note
Other methods are available for getting Method
B results on links that have different connector
styles at each end or for when you do not have
the correct connector adapters for the tester.
See "Modified Method B" on page B- 8 and
"The Alternate Method" on page B-11.
Loss Test Methods for Fiber Cabling
Method B/A.1
B
amd70f.eps
Figure B-2. Method B/A.1 Reference and Test Connections (singlemode shown)
B-5
DTX Series CableAnalyzer
Technical Reference Handbook
Method C/A.3
Method C/A.3 results account for the loss of only the
fiber in the link. Method C/A.3 is suitable for testing links
where the fiber's loss is the majority of the total loss, such
as when the link is very long or patch cords are not used
at either end. Method C is defined in the ANSI/TIA/EIA526-14A multimode standard. Method A.3 is defined in
the ANSI/TIA/EIA-526-7 singlemode standard.
Method C/A.3 reference connections cancel out the
effects of both reference test cords and two connectors
in each fiber path, as shown in Figure B-3.
The test connections add only the fiber in link to each
path. Loss results for Method C/A.3 therefore represent
only the fiber in the link.
B-6
Because the results omit both connections in the link,
ANSI/TIA/EIA-526-14A and 526-7 do not recommend
Method C/A.3 for testing premises fiber, where patch
cords are typically used at both ends of the link and
connector loss is a large portion of the total loss.
Loss Test Methods for Fiber Cabling
Method C/A.3
B
amd71f.eps
Figure B-3. Method C/A.3 Reference and Test Connections (singlemode shown)
B-7
DTX Series CableAnalyzer
Technical Reference Handbook
Modified Method B
This section shows modified reference and test
connections that produce Method B results. Use these
connections if you need Method B results but do not
have connector adapters that match the connectors on
the fiber under test. This method lets you connect to the
fiber without disturbing the fiber modules' output
connections after setting the reference.
B-8
Figures B-4 and B-5 show reference and test connections
for a fiber with MT-RJ connectors.
On the tester select Method B as the Test Method when
using modified Method B connections.
Loss Test Methods for Fiber Cabling
Modified Method B
Reference test cord:
SC to MT-RJ (pinned)
MT-RJ to MT-RJ adapter
3
2
1
3
B
Mandrel*
Reference test cord:
SC to MT-RJ (no pins)
Mandrel*
2
Tester
1
Smart remote
WCaution
Do not disconnect
the outputs ( 1 and 1 ).
* Mandrels used only for
multimode fiber tested with
the DTX-MFM2 modules
amd47f.eps
Figure B-4. Modified Method B: Smart Remote Mode Reference Connections
B-9
DTX Series CableAnalyzer
Technical Reference Handbook
Fiber link
or spool
Mandrel*
MT-RJ to MT-RJ adapter
Reference test cord:
SC to MT-RJ (pinned)
3
2
1
Mandrel*
3
Short MT-RJ (no pins)
to MT-RJ (pinned)
reference test cord.
(0.3 m or less.
Added after referencing)
Tester
F1
F2
F3
TEST
EXIT
ENTER
SAVE
SINGLE
TEST
MONITOR
AUTO
TEST
SETUP
SPECIAL
FUNCTIONS
Reference test cord:
SC to MT-RJ (no pins)
2
1
Smart remote
WCaution
Do not disconnect
the outputs ( 1 and 1 ).
* Mandrels used only for
TALK
multimode fiber tested with
the DTX-MFM2 modules
TALK
amd48f.eps
Figure B-5. Modified Method B: Smart Remote Mode Test Connections
B-10
Loss Test Methods for Fiber Cabling
The Alternate Method
The Alternate Method
Like Method B/A.1, the alternate method produces
results that account for the loss of two connections plus
the fiber in the link.
An advantage of this method is that you can test links
that have different connector styles at each end.
Figure B-6 shows reference and test connections for the
alternate method. The link under test has MT-RJ
connectors at one end, and LC connectors at the other
end.
Using an SC to MT-RJ patch cord and an SC to LC patch
cord for reference and test connections may seem like an
easier way to connect to the link; however, that would
require an MT-RJ to LC patch cord for reference
connections. The reference and test connections would
be the Method C/A.3 configuration, as shown in Figure
B-3. The loss results would account for the loss of only
the fiber in the link.
B
To account for the loss of both connections in the link,
you must add connections to each end after referencing,
as shown at the bottom of Figure B-6. Each fiber path
then has four connections. Since two connections were
canceled out during referencing, the test results include
the loss of the two connections at the ends of the link.
You may also use the alternate method to test links that
have the same connector style at both ends. As with
modified Method B, this method lets you test links when
you do not have the correct connector adapters for the
tester. For referencing, use the connections shown at the
top of Figure B-6. For testing, add the appropriate short
patch cords at each end. Figure B-7 shows an example of
these test connections for a link with MT-RJ connectors at
both ends.
On the tester select Method B as the Test Method when
using these alternate connections.
B-11
DTX Series CableAnalyzer
Technical Reference Handbook
amd114f.eps
Figure B-6. Alternate Method Reference and Test Connections for a Hybrid Link (singlemode shown)
B-12
Loss Test Methods for Fiber Cabling
The Alternate Method
B
amd115f.eps
Figure B-7. Alternate Method Test Connections for a Link with MT-RJ Connectors (singlemode shown)
B-13
DTX Series CableAnalyzer
Technical Reference Handbook
B-14
Index
—$—
—6—
$
606-A, 2-24
cable IDs, 1-29
—*—
* in results, 3-12
* in test settings, 10-2, 10-3, 10-4,
10-5, 10-6
—3—
3 dB rule, 3-24
—4—
4 dB rule, 3-20
—A—
accessories
optional, 12-11
standard, 1-3
ACR test, 3-22
adapters, 1-18
asterisk in results, 3-12
attenuation. See insertion loss
Audible Tone, 1-26
Auto Increment
overview, 1-29
tutorial, 2-20
Auto Sequence
overview, 1-29
tutorial, 2-21
Autotest
asterisk in results, 3-12
automatic diagnostics, 3-11
coaxial, 4-6
coaxial results, 4-9
copper cabling failures, 5-2
Far End Source mode, 6-34
fiber cabling failures, 8-2
Loopback mode, 6-26
main screen, 1-23
results
coaxial, 4-9
Far End Source mode, 6-40
Loopback mode, 6-32
Smart Remote mode, 6-24
twisted pair, 3-9
Smart Remote mode, 6-19
1
DTX Series CableAnalyzer
Technical Reference Handbook
twisted pair, 3-6
—B—
backbone template, 2-24
backlight
key, 1-9
timer, 1-25
Bad patch cord, 5-3
battery
charging, 1-14
clock battery, 12-7
replacement, 12-7
retraining the battery gauge, 12-6
status, 1-16
storage, 12-8
beeper, 1-26
Bi-Directional
setting, 6-14
testing, 6-42
Broadcasts, 9-13
buttons, 1-9
—C—
Cable ID Source, 1-28
cable IDs, 1-28
$, 1-29
2
auto increment, 2-20
downloaded from a PC, 1-29
sequential, 2-21
templates, 2-24
troubleshooting, 2-23
Cable Type
coaxial, 4-3
custom, 10-1
fiber types tested, 12-32
new cable types database, 12-5
twisted pair, 3-3
twisted pair types tested, 12-16
calibration, 12-2
campus template, 2-25
cautions, 1-6, 6-3, 12-1
certifications, 12-36
channel test connections, 3-8
characteristic impedance
coaxial, 4-10
diagnosing failures, 5-7
specifications, 12-27
twisted pair, 3-15
checkmark
coaxial results, 4-9
fiber results, 6-25, 6-33, 6-41
twisted pair results, 3-10
cleaning
display and case, 12-6
fiber connectors, 12-7
cleaning connectors and adapters,
6-8
coaxial
Autotest, 4-6
reference, 4-1
results, 4-9
test settings, 4-3
Collisions, 9-13
Company, 2-2
compliance, 12-36
connections
channel, 3-8
fiber. See Smart Remote,
Loopback, or Far End Source
mode
for fiber test methods, B-1
permanent link, 3-7
connector adapter
cleaning, 6-9
installation, 6-6
Connector Type, 6-15
connectors
fiber module, 6-5
main tester, 1-11
optical connector maintenance,
12-7
RJ11 (telephone), 1-7
Index (continued)
smart remote, 1-13
crossed pairs, 3-14
crossed wires, 5-3
custom test settings
deleting, 10-7
editing, copying, renaming, 10-7
fiber test limit, 10-5
fiber type, 10-3
NVP, 10-8
outlet configuration, 10-6
transferring between testers, 10-10
twisted pair cable, 10-1
twisted pair test limit, 10-4
customer support
contacting Fluke Networks, 1-2
if something seems wrong, 12-8
—D—
database for limits and cable types,
12-5
Date, 1-24
decimal separator, 1-24
delay skew
diagnosing failures, 5-8
specifications, 12-18
test, 3-17
deleting
folders, 11-4
results, 11-6
DHCP, 9-4
diagnosing test failures
copper cabling, 5-2
fiber cabling, 8-2
network service, 9-16
diagnostics, 3-11
display
backlight, 1-9
backlight timer, 1-25
cleaning, 12-6
contrast, 1-25
specifications, 12-38
DTX-COAX module. See coaxial
DTX-MFM2/GFM2/SFM2 modules. See
fiber
DTX-NSM module. See network
service
—E—
ELFEXT
diagnosing failures, 5-4
specifications, 12-19
test, 3-26
EMC, 12-36
End Not Found, 4-12
equipment
Far End Source mode, 6-35
FindFiber in Loopback mode, 6-48
FindFiber in Smart Remote mode,
6-45
Loopback mode, 6-27
power meter (MONITOR mode),
6-50
Smart Remote mode, 6-19
twisted pair tests, 3-6
error messages, 12-9
Errors, 9-13
—F—
FAIL
copper cabling, 5-2
fiber cabling, 8-2
FAIL*, 3-12
Far End Source mode
Autotest, 6-38
equipment, 6-35
referencing, 6-36
test connections, 6-39
Fault Info, 3-11
FEXT, 3-26
fiber
bi-directional, 6-42
3
DTX Series CableAnalyzer
Technical Reference Handbook
Far End Source mode, 6-34
FindFiber, 6-44
Loopback mode, 6-26
module
features, 6-5
installation and removal, 6-4
negative loss, 8-3
power meter, 6-50
reference test cord replacement,
12-7
referencing
Far End Source mode, 6-36
Loopback mode, 6-28
Smart Remote mode, 6-20
Smart Remote mode, 6-19
specifications, 12-28, 12-31
test methods, B-1
test settings, 6-14
tutorial on testing, 2-12
Fiber Type
custom, 10-3
new fiber types database, 12-5
setting, 6-14
FindFiber, 6-44
Fluke Networks
contacting, 1-2
Knowledge Base, 1-3
folders
4
changing, 11-4
deleting, 11-4
duplicate, 11-3
new, 11-3
formatting memory, 1-26, 11-7
front panel
main tester, 1-9
smart remote, 1-13
Full Duplex, 9-8, 9-10
—G—
gateway address, 9-4
—H—
Half Duplex, 9-8, 9-10
hardware version, 1-22
HDTDR analyzer
specifications, 12-27
using, 5-12
HDTDX analyzer
specifications, 12-27
using, 5-9
help (customer support), 12-8
horizontal link template, 2-24
—I—
i
coaxial results, 4-9
fiber results, 6-25, 6-33
length results, 3-16
NEXT results, 3-20
resistance results, 3-15
return loss results, 3-24
twisted pair results, 3-10
ID Locator, 9-14
IDs. See cable IDs
impedance. See characteristic
impedance
impulse noise, 3-31
diagnosing failures, 5-8
specifications, 12-27
index of refraction, 6-17
input ratings, 12-36
insertion loss
coaxial, 4-11
diagnosing failures, 5-6
twisted pair, 3-18
internal memory capacity, 11-1
—K—
keys
main tester, 1-9
Index (continued)
smart remote, 1-13
Knowledge Base, 1-3
—L—
language, 1-14
length
coaxial, 4-11
diagnosing failures for fiber, 8-3
diagnosing failures for twisted
pair, 5-7
Loopback mode, 6-33
Smart Remote mode, 6-25
specifications, 12-17
twisted pair, 3-16
units, 1-24
link interface adapters
attaching/removing, 1-18
specifications, 12-16
LinkWare
description, 1-30
uploading results, 11-9
LinkWare Stats, 1-30
List, 1-29
Loopback mode
Autotest, 6-30
equipment, 6-27
referencing, 6-28
test connections, 6-31
loss
diagnosing failures, 8-2
Loopback mode, 6-33
Smart Remote mode, 6-25
loss is negative, 6-10, 8-3
loss/length testing (fiber)
Far End Source mode, 6-34
Loopback mode, 6-26
Smart Remote mode, 6-19
modified, B-8
standard, 6-18
Method B/A.1, B-4
Method C/A.3, B-6
modified Method B, B-8
monitoring network traffic, 9-12
moving results, 11-6
MT-RJ, 6-18
—M—
n, 6-17
negative loss, 6-10, 8-3
network service
blinking a port light, 9-14
connectivity results, 9-8
connectivity test, 9-4
connectivity test connections, 9-7
diagnosing network problems,
9-16
ID locator, 9-14
module
features, 9-2
installation and removal, 9-2
software requirements, 9-1
monitoring network traffic, 9-12
negotiation details screen, 9-10
ping addresses, 9-5
maintenance, 12-1
mandrels, 6-12
MDI/MDI-X, 9-8, 9-10
memory
features and functions, 11-1
specifications, 12-37
status screen, 11-2
memory card
capacity, 11-1
care, 11-8
folders, 11-3
inserting and removing, 1-27
Method A, B, C, 6-15
Method A/A.2, B-2
Method B
—N—
5
DTX Series CableAnalyzer
Technical Reference Handbook
ping test, 9-11
saving results, 9-6
specifications, 12-30
test settings, 9-4
NEXT
diagnosing failures, 5-4
HDTDX analyzer, 5-9
specifications, 12-19
test, 3-20
noise. See impulse noise
None, 1-29
Number of Adapters, 6-15
Number of Splices, 6-15
Numeric Format, 1-24
NVP
changing, 10-8
coaxial default, 4-3
resetting to default, 10-10
twisted pair default, 3-3
—O—
open
fiber, 7-2
Smart Remote mode, 6-22
twisted pair, 3-13, 5-2
Operator, 2-2
OptiFiber, 6-54
6
options, 12-11
Outlet Configuration
custom, 10-6
diagrams, 3-4
—P—
PASS*, 3-12
patch cord. See reference test cord
testing twisted pair patch cords,
3-2
Patch Lengths, 6-17
permanent link
interface adapters, 1-18
test connections, 3-7
personality module, 1-20
Pin Reversal, 9-10
ping test
entering addresses, 9-5
results, 9-12
running the test, 9-11
PoE, 9-8
Port Blink, 9-14
power
powering the tester, 1-14
specifications, 12-36
power down timer, 1-25
power meter, 6-50
measurement is too high or too
low, 8-4
MONITOR mode, 6-51
SINGLE TEST mode, 6-52
problems
copper cabling, 5-2
fiber cabling, 8-1
with the tester, 12-8
propagation delay
coaxial, 4-11
diagnosing failures, 5-8
Loopback mode, 6-33
Smart Remote mode, 6-25
specifications, 12-18
twisted pair, 3-17
PSACR test, 3-26
PSELFEXT
diagnosing failures, 5-4
test, 3-29
PSNEXT
diagnosing failures, 5-4
test, 3-26
—R—
reference test cord
replacement, 12-7
testing, 6-8, 6-11
Index (continued)
referencing
coaxial, 4-1
fiber
Far End Source mode, 6-36
Loopback mode, 6-28
Smart Remote mode, 6-20
when to set, 6-10
twisted pair, 3-1
registration, 1-2
Remote End Setup, 6-14
resistance
coaxial, 4-10
diagnosing failures, 5-7
specifications, 12-18
twisted pair, 3-15
Result Storage Location, 1-28, 2-4,
11-3
return loss
diagnosing failures, 5-5
HDTDR analyzer, 5-12
specifications, 12-21
test, 3-24
RJ11 connector, 1-7
RTT, 9-12
—S—
safety
fiber module information, 6-2
information, 1-6
standards, 12-37
scanning
coaxial resistance, 4-10
HDTDR, 5-12
HDTDX, 5-9
twisted pair resistance, 3-15
wire map, 3-13
self test
fiber modules, 6-8
twisted pair adapters, 1-21
sequential cable IDs, 2-21
serial cable (RS-232), 12-3
serial port, 12-38
service, 12-8
Set Reference
fiber, 6-17
twisted pair, 3-5
setup
battery, 1-14
coaxial test settings, 4-3
fiber test settings, 6-14
language, 1-14
twisted pair test settings, 3-3
user preferences, 1-24
short, 3-14, 5-3
single tests
coaxial, 4-11
fiber, 6-54
twisted pair, 3-29
Site, 2-2
Smart Remote mode
Autotest, 6-22
equipment, 2-13, 6-19
referencing, 6-20
test connections, 6-23
software
updates, 12-2
limits or cable types database,
12-5
with a memory card, 12-5
with a PC, 12-2
with another tester, 12-4
version, 1-22
sorting results, 11-7
split pair, 5-2
Static, 9-4
storage, 12-8
Store Plot Data
coaxial, 4-4
twisted pair, 1-23, 3-5
subnet mask, 9-4
7
DTX Series CableAnalyzer
Technical Reference Handbook
Summary screen
coaxial, 4-9
Far End Source mode, 6-40
Loopback mode, 6-33
Smart Remote mode, 6-25
twisted pair, 3-10
—T—
talk mode, 1-30
Target Addresses, 9-5
templates for cable IDs, 2-24
Test Limit
coaxial, 4-3
custom fiber limit, 10-5
custom twisted pair limit, 10-4
fiber, 6-14
new limit database, 12-5
twisted pair, 3-3
Test Method
alternate connections, B-11
explanation, B-1
modified Method B, B-8
names in standards, A-1
setting, 6-15
text editing screen, 2-3
Time, 1-24
tone generator
8
main tester, 1-9
smart remote, 1-13
using, 3-34
traffic monitor, 9-12
troubleshooting
copper cabling, 5-2
fibercabling, 8-2
tester, 12-8
tutorials
auto increment cable IDs, 2-20
auto sequence cable IDs, 2-21
testing fiber cabling, 2-12
testing twisted pair cabling, 2-5
twisted pair
adapters, 1-18
Autotest, 3-6
equipment for testing, 3-6
referencing, 3-1
test settings, 3-3
tutorial on testing, 2-5
—U—
Unknown
coaxial impedance test, 4-10, 4-12
Smart Remote mode, 6-22
twisted pair impedance test, 3-15
updating the software, 12-2
with a memory card, 12-5
with a PC, 12-2
with another tester, 12-4
uploading results, 11-9
USB port, 12-38
Utilization, 9-13
—V—
version, 1-22
visual fault locator (VFL), 7-1
—W—
warnings, 1-6, 6-2, 12-1
wire map
diagnosing failures, 5-2
diagrams, 3-4
test, 3-13
—X—
X
coaxial results, 4-9
fiber results, 6-25, 6-33, 6-41
twisted pair results, 3-10